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6
.github/workflows/build.yml
vendored
6
.github/workflows/build.yml
vendored
@@ -14,13 +14,13 @@ jobs:
|
||||
runs-on: ubuntu-latest
|
||||
timeout-minutes: 5
|
||||
steps:
|
||||
- name: Set up Go 1.14
|
||||
- name: Set up Go 1.15
|
||||
uses: actions/setup-go@v1
|
||||
with:
|
||||
go-version: 1.14
|
||||
go-version: 1.15
|
||||
id: go
|
||||
- name: Check out code into the Go module directory
|
||||
uses: actions/checkout@v1
|
||||
uses: actions/checkout@v2
|
||||
- name: Build binary to make sure it works
|
||||
run: go build -mod vendor
|
||||
- name: Test
|
||||
|
||||
202
LICENSE.md
202
LICENSE.md
@@ -1,201 +1,9 @@
|
||||
Apache License
|
||||
Version 2.0, January 2004
|
||||
http://www.apache.org/licenses/
|
||||
MIT License
|
||||
|
||||
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
|
||||
Copyright (c) 2020 TwinProduction
|
||||
|
||||
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|
||||
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
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||||
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"License" shall mean the terms and conditions for use, reproduction,
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APPENDIX: How to apply the Apache License to your work.
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To apply the Apache License to your work, attach the following
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Copyright 2020 TwinProduction
|
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|
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Licensed under the Apache License, Version 2.0 (the "License");
|
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you may not use this file except in compliance with the License.
|
||||
You may obtain a copy of the License at
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|
||||
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Unless required by applicable law or agreed to in writing, software
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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||||
|
||||
142
README.md
142
README.md
@@ -1,13 +1,15 @@
|
||||
|
||||
|
||||
|
||||
[](https://goreportcard.com/report/github.com/TwinProduction/gatus)
|
||||
[](https://goreportcard.com/report/github.com/TwinProduction/gatus)
|
||||
[](https://github.com/TwinProduction)
|
||||
[](https://github.com/TwinProduction/gatus)
|
||||
[](https://cloud.docker.com/repository/docker/twinproduction/gatus)
|
||||
|
||||
A service health dashboard in Go that is meant to be used as a docker
|
||||
image with a custom configuration file.
|
||||
|
||||
I personally deploy it in my Kubernetes cluster and have it monitor the status of my
|
||||
I personally deploy it in my Kubernetes cluster and let it monitor the status of my
|
||||
core applications: https://status.twinnation.org/
|
||||
|
||||
|
||||
@@ -17,6 +19,8 @@ core applications: https://status.twinnation.org/
|
||||
- [Usage](#usage)
|
||||
- [Configuration](#configuration)
|
||||
- [Conditions](#conditions)
|
||||
- [Placeholders](#placeholders)
|
||||
- [Functions](#functions)
|
||||
- [Alerting](#alerting)
|
||||
- [Configuring Slack alerts](#configuring-slack-alerts)
|
||||
- [Configuring PagerDuty alerts](#configuring-pagerduty-alerts)
|
||||
@@ -27,6 +31,9 @@ core applications: https://status.twinnation.org/
|
||||
- [Using in Production](#using-in-production)
|
||||
- [FAQ](#faq)
|
||||
- [Sending a GraphQL request](#sending-a-graphql-request)
|
||||
- [Recommended interval](#recommended-interval)
|
||||
- [Default timeouts](#default-timeouts)
|
||||
- [Monitoring a TCP service](#monitoring-a-tcp-service)
|
||||
|
||||
|
||||
## Features
|
||||
@@ -75,13 +82,14 @@ Note that you can also add environment variables in the configuration file (i.e.
|
||||
### Configuration
|
||||
|
||||
| Parameter | Description | Default |
|
||||
| ---------------------------------------- | ----------------------------------------------------------------------------- | -------------- |
|
||||
|:---------------------------------------- |:----------------------------------------------------------------------------- |:-------------- |
|
||||
| `debug` | Whether to enable debug logs | `false` |
|
||||
| `metrics` | Whether to expose metrics at /metrics | `false` |
|
||||
| `services` | List of services to monitor | Required `[]` |
|
||||
| `services[].name` | Name of the service. Can be anything. | Required `""` |
|
||||
| `services[].url` | URL to send the request to | Required `""` |
|
||||
| `services[].conditions` | Conditions used to determine the health of the service | `[]` |
|
||||
| `services[].insecure` | Whether to skip verifying the server's certificate chain and host name | `false` |
|
||||
| `services[].interval` | Duration to wait between every status check | `60s` |
|
||||
| `services[].method` | Request method | `GET` |
|
||||
| `services[].graphql` | Whether to wrap the body in a query param (`{"query":"$body"}`) | `false` |
|
||||
@@ -94,19 +102,23 @@ Note that you can also add environment variables in the configuration file (i.e.
|
||||
| `services[].alerts[].send-on-resolved` | Whether to send a notification once a triggered alert is marked as resolved | `false` |
|
||||
| `services[].alerts[].description` | Description of the alert. Will be included in the alert sent | `""` |
|
||||
| `alerting` | Configuration for alerting | `{}` |
|
||||
| `alerting.slack` | Configuration for alerts of type `slack` | `""` |
|
||||
| `alerting.slack` | Configuration for alerts of type `slack` | `{}` |
|
||||
| `alerting.slack.webhook-url` | Slack Webhook URL | Required `""` |
|
||||
| `alerting.pagerduty` | Configuration for alerts of type `pagerduty` | `""` |
|
||||
| `alerting.pagerduty` | Configuration for alerts of type `pagerduty` | `{}` |
|
||||
| `alerting.pagerduty.integration-key` | PagerDuty Events API v2 integration key. | Required `""` |
|
||||
| `alerting.twilio` | Settings for alerts of type `twilio` | `""` |
|
||||
| `alerting.twilio` | Settings for alerts of type `twilio` | `{}` |
|
||||
| `alerting.twilio.sid` | Twilio account SID | Required `""` |
|
||||
| `alerting.twilio.token` | Twilio auth token | Required `""` |
|
||||
| `alerting.twilio.from` | Number to send Twilio alerts from | Required `""` |
|
||||
| `alerting.twilio.to` | Number to send twilio alerts to | Required `""` |
|
||||
| `alerting.custom` | Configuration for custom actions on failure or alerts | `""` |
|
||||
| `alerting.custom` | Configuration for custom actions on failure or alerts | `{}` |
|
||||
| `alerting.custom.url` | Custom alerting request url | Required `""` |
|
||||
| `alerting.custom.body` | Custom alerting request body. | `""` |
|
||||
| `alerting.custom.headers` | Custom alerting request headers | `{}` |
|
||||
| `security` | Security configuration | `{}` |
|
||||
| `security.basic` | Basic authentication security configuration | `{}` |
|
||||
| `security.basic.username` | Username for Basic authentication | Required `""` |
|
||||
| `security.basic.password-sha512` | Password's SHA512 hash for Basic authentication | Required `""` |
|
||||
|
||||
|
||||
### Conditions
|
||||
@@ -114,23 +126,48 @@ Note that you can also add environment variables in the configuration file (i.e.
|
||||
Here are some examples of conditions you can use:
|
||||
|
||||
| Condition | Description | Passing values | Failing values |
|
||||
| -----------------------------| ------------------------------------------------------- | -------------------------- | -------------- |
|
||||
|:-----------------------------|:------------------------------------------------------- |:-------------------------- | -------------- |
|
||||
| `[STATUS] == 200` | Status must be equal to 200 | 200 | 201, 404, ... |
|
||||
| `[STATUS] < 300` | Status must lower than 300 | 200, 201, 299 | 301, 302, ... |
|
||||
| `[STATUS] <= 299` | Status must be less than or equal to 299 | 200, 201, 299 | 301, 302, ... |
|
||||
| `[STATUS] > 400` | Status must be greater than 400 | 401, 402, 403, 404 | 400, 200, ... |
|
||||
| `[CONNECTED] == true` | Connection to host must've been successful | true, false | |
|
||||
| `[RESPONSE_TIME] < 500` | Response time must be below 500ms | 100ms, 200ms, 300ms | 500ms, 501ms |
|
||||
| `[BODY] == 1` | The body must be equal to 1 | 1 | Anything else |
|
||||
| `[IP] == 127.0.0.1` | Target IP must be 127.0.0.1 | 127.0.0.1 | 0.0.0.0 |
|
||||
| `[BODY] == 1` | The body must be equal to 1 | 1 | `{}`, `2`, ... |
|
||||
| `[BODY].user.name == john` | JSONPath value of `$.user.name` is equal to `john` | `{"user":{"name":"john"}}` | |
|
||||
| `[BODY].data[0].id == 1` | JSONPath value of `$.data[0].id` is equal to 1 | `{"data":[{"id":1}]}` | |
|
||||
| `[BODY].age == [BODY].id` | JSONPath value of `$.age` is equal JSONPath `$.id` | `{"age":1,"id":1}` | |
|
||||
| `len([BODY].data) < 5` | Array at JSONPath `$.data` has less than 5 elements | `{"data":[{"id":1}]}` | |
|
||||
| `len([BODY].name) == 8` | String at JSONPath `$.name` has a length of 8 | `{"name":"john.doe"}` | `{"name":"bob"}` |
|
||||
| `[BODY].name == pat(john*)` | String at JSONPath `$.name` matches pattern `john*` | `{"name":"john.doe"}` | `{"name":"bob"}` |
|
||||
|
||||
|
||||
#### Placeholders
|
||||
|
||||
| Placeholder | Description | Example of resolved value |
|
||||
|:----------------------- |:------------------------------------------------------- |:------------------------- |
|
||||
| `[STATUS]` | Resolves into the HTTP status of the request | 404
|
||||
| `[RESPONSE_TIME]` | Resolves into the response time the request took, in ms | 10
|
||||
| `[IP]` | Resolves into the IP of the target host | 192.168.0.232
|
||||
| `[BODY]` | Resolves into the response body. Supports JSONPath. | `{"name":"john.doe"}`
|
||||
| `[CONNECTED]` | Resolves into whether a connection could be established | `true`
|
||||
|
||||
|
||||
#### Functions
|
||||
|
||||
| Function | Description | Example |
|
||||
|:-----------|:---------------------------------------------------------------------------------------------------------------- |:-------------------------- |
|
||||
| `len` | Returns the length of the object/slice. Works only with the `[BODY]` placeholder. | `len([BODY].username) > 8`
|
||||
| `pat` | Specifies that the string passed as parameter should be evaluated as a pattern. Works only with `==` and `!=`. | `[IP] == pat(192.168.*)`
|
||||
|
||||
**NOTE**: Use `pat` only when you need to. `[STATUS] == pat(2*)` is a lot more expensive than `[STATUS] < 300`.
|
||||
|
||||
|
||||
|
||||
### Alerting
|
||||
|
||||
|
||||
|
||||
#### Configuring Slack alerts
|
||||
|
||||
```yaml
|
||||
@@ -139,8 +176,8 @@ alerting:
|
||||
webhook-url: "https://hooks.slack.com/services/**********/**********/**********"
|
||||
services:
|
||||
- name: twinnation
|
||||
interval: 30s
|
||||
url: "https://twinnation.org/health"
|
||||
interval: 30s
|
||||
alerts:
|
||||
- type: slack
|
||||
enabled: true
|
||||
@@ -175,15 +212,15 @@ alerting:
|
||||
integration-key: "********************************"
|
||||
services:
|
||||
- name: twinnation
|
||||
interval: 30s
|
||||
url: "https://twinnation.org/health"
|
||||
interval: 30s
|
||||
alerts:
|
||||
- type: pagerduty
|
||||
enabled: true
|
||||
failure-threshold: 3
|
||||
success-threshold: 5
|
||||
description: "healthcheck failed 3 times in a row"
|
||||
send-on-resolved: true
|
||||
description: "healthcheck failed 3 times in a row"
|
||||
conditions:
|
||||
- "[STATUS] == 200"
|
||||
- "[BODY].status == UP"
|
||||
@@ -208,8 +245,8 @@ services:
|
||||
- type: twilio
|
||||
enabled: true
|
||||
failure-threshold: 5
|
||||
description: "healthcheck failed 5 times in a row"
|
||||
send-on-resolved: true
|
||||
description: "healthcheck failed 5 times in a row"
|
||||
conditions:
|
||||
- "[STATUS] == 200"
|
||||
- "[BODY].status == UP"
|
||||
@@ -245,8 +282,8 @@ alerting:
|
||||
}
|
||||
services:
|
||||
- name: twinnation
|
||||
interval: 30s
|
||||
url: "https://twinnation.org/health"
|
||||
interval: 30s
|
||||
alerts:
|
||||
- type: custom
|
||||
enabled: true
|
||||
@@ -267,12 +304,12 @@ Other than using one of the examples provided in the `examples` folder, you can
|
||||
creating a configuration file - we'll call it `config.yaml` for this example - and running the following
|
||||
command:
|
||||
```
|
||||
docker run -p 8080:8080 --mount type=bind,source="$(pwd)"/test.yaml,target=/config/config.yaml --name gatus twinproduction/gatus
|
||||
docker run -p 8080:8080 --mount type=bind,source="$(pwd)"/config.yaml,target=/config/config.yaml --name gatus twinproduction/gatus
|
||||
```
|
||||
|
||||
If you're on Windows, replace `"$(pwd)"` by the absolute path to your current directory, e.g.:
|
||||
```
|
||||
docker run -p 8080:8080 --mount type=bind,source=E:/Go/src/github.com/TwinProduction/gatus/test.yaml,target=/config/config.yaml --name gatus twinproduction/gatus
|
||||
docker run -p 8080:8080 --mount type=bind,source=C:/Users/Chris/Desktop/config.yaml,target=/config/config.yaml --name gatus twinproduction/gatus
|
||||
```
|
||||
|
||||
## Running the tests
|
||||
@@ -320,3 +357,74 @@ will send a `POST` request to `http://localhost:8080/playground` with the follow
|
||||
```json
|
||||
{"query":" {\n user(gender: \"female\") {\n id\n name\n gender\n avatar\n }\n }"}
|
||||
```
|
||||
|
||||
|
||||
### Recommended interval
|
||||
|
||||
To ensure that Gatus provides reliable and accurate results (i.e. response time), Gatus only evaluates one service at a time.
|
||||
In other words, even if you have multiple services with the exact same interval, they will not execute at the same time.
|
||||
|
||||
You can test this yourself by running Gatus with several services configured with a very short, unrealistic interval,
|
||||
such as 1ms. You'll notice that the response time does not fluctuate - that is because while services are evaluated on
|
||||
different goroutines, there's a global lock that prevents multiple services from running at the same time.
|
||||
|
||||
Unfortunately, there is a drawback. If you have a lot of services, including some that are very slow or prone to time out (the default
|
||||
time out is 10s for HTTP and 5s for TCP), then it means that for the entire duration of the request, no other services can be evaluated.
|
||||
|
||||
**This does mean that Gatus will be unable to evaluate the health of other services**.
|
||||
The interval does not include the duration of the request itself, which means that if a service has an interval of 30s
|
||||
and the request takes 2s to complete, the timestamp between two evaluations will be 32s, not 30s.
|
||||
|
||||
While this does not prevent Gatus' from performing health checks on all other services, it may cause Gatus to be unable
|
||||
to respect the configured interval, for instance:
|
||||
- Service A has an interval of 5s, and times out after 10s to complete
|
||||
- Service B has an interval of 5s, and takes 1ms to complete
|
||||
- Service B will be unable to run every 5s, because service A's health evaluation takes longer than its interval
|
||||
|
||||
To sum it up, while Gatus can really handle any interval you throw at it, you're better off having slow requests with
|
||||
higher interval.
|
||||
|
||||
As a rule of the thumb, I personally set interval for more complex health checks to `5m` (5 minutes) and
|
||||
simple health checks used for alerting (PagerDuty/Twilio) to `30s`.
|
||||
|
||||
|
||||
### Default timeouts
|
||||
|
||||
| Protocol | Timeout |
|
||||
|:-------- |:------- |
|
||||
| HTTP | 10s
|
||||
| TCP | 5s
|
||||
|
||||
|
||||
### Monitoring a TCP service
|
||||
|
||||
By prefixing `services[].url` with `tcp:\\`, you can monitor TCP services at a very basic level:
|
||||
|
||||
```yaml
|
||||
- name: redis
|
||||
url: "tcp://127.0.0.1:6379"
|
||||
interval: 30s
|
||||
conditions:
|
||||
- "[CONNECTED] == true"
|
||||
```
|
||||
|
||||
Placeholders `[STATUS]` and `[BODY]` as well as the fields `services[].body`, `services[].insecure`,
|
||||
`services[].headers`, `services[].method` and `services[].graphql` are not supported for TCP services.
|
||||
|
||||
**NOTE**: `[CONNECTED] == true` does not guarantee that the service itself is healthy - it only guarantees that there's
|
||||
something at the given address listening to the given port, and that a connection to that address was successfully
|
||||
established.
|
||||
|
||||
|
||||
### Basic authentication
|
||||
|
||||
You can require Basic authentication by leveraging the `security.basic` configuration:
|
||||
|
||||
```yaml
|
||||
security:
|
||||
basic:
|
||||
username: "john.doe"
|
||||
password-sha512: "6b97ed68d14eb3f1aa959ce5d49c7dc612e1eb1dafd73b1e705847483fd6a6c809f2ceb4e8df6ff9984c6298ff0285cace6614bf8daa9f0070101b6c89899e22"
|
||||
```
|
||||
|
||||
The example above will require that you authenticate with the username `john.doe` as well as the password `hunter2`.
|
||||
|
||||
@@ -10,6 +10,8 @@ import (
|
||||
"strings"
|
||||
)
|
||||
|
||||
// AlertProvider is the configuration necessary for sending an alert using a custom HTTP request
|
||||
// Technically, all alert providers should be reachable using the custom alert provider
|
||||
type AlertProvider struct {
|
||||
Url string `yaml:"url"`
|
||||
Method string `yaml:"method,omitempty"`
|
||||
@@ -17,10 +19,12 @@ type AlertProvider struct {
|
||||
Headers map[string]string `yaml:"headers,omitempty"`
|
||||
}
|
||||
|
||||
// IsValid returns whether the provider's configuration is valid
|
||||
func (provider *AlertProvider) IsValid() bool {
|
||||
return len(provider.Url) > 0
|
||||
}
|
||||
|
||||
// ToCustomAlertProvider converts the provider into a custom.AlertProvider
|
||||
func (provider *AlertProvider) ToCustomAlertProvider(service *core.Service, alert *core.Alert, result *core.Result, resolved bool) *AlertProvider {
|
||||
return provider
|
||||
}
|
||||
@@ -69,7 +73,7 @@ func (provider *AlertProvider) buildRequest(serviceName, alertDescription string
|
||||
// Send a request to the alert provider and return the body
|
||||
func (provider *AlertProvider) Send(serviceName, alertDescription string, resolved bool) ([]byte, error) {
|
||||
request := provider.buildRequest(serviceName, alertDescription, resolved)
|
||||
response, err := client.GetHttpClient().Do(request)
|
||||
response, err := client.GetHttpClient(false).Do(request)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
@@ -6,10 +6,12 @@ import (
|
||||
"github.com/TwinProduction/gatus/core"
|
||||
)
|
||||
|
||||
// AlertProvider is the configuration necessary for sending an alert using PagerDuty
|
||||
type AlertProvider struct {
|
||||
IntegrationKey string `yaml:"integration-key"`
|
||||
}
|
||||
|
||||
// IsValid returns whether the provider's configuration is valid
|
||||
func (provider *AlertProvider) IsValid() bool {
|
||||
return len(provider.IntegrationKey) == 32
|
||||
}
|
||||
|
||||
@@ -5,7 +5,11 @@ import (
|
||||
"github.com/TwinProduction/gatus/core"
|
||||
)
|
||||
|
||||
// AlertProvider is the interface that each providers should implement
|
||||
type AlertProvider interface {
|
||||
// IsValid returns whether the provider's configuration is valid
|
||||
IsValid() bool
|
||||
|
||||
// ToCustomAlertProvider converts the provider into a custom.AlertProvider
|
||||
ToCustomAlertProvider(service *core.Service, alert *core.Alert, result *core.Result, resolved bool) *custom.AlertProvider
|
||||
}
|
||||
|
||||
@@ -6,14 +6,17 @@ import (
|
||||
"github.com/TwinProduction/gatus/core"
|
||||
)
|
||||
|
||||
// AlertProvider is the configuration necessary for sending an alert using Slack
|
||||
type AlertProvider struct {
|
||||
WebhookUrl string `yaml:"webhook-url"`
|
||||
}
|
||||
|
||||
// IsValid returns whether the provider's configuration is valid
|
||||
func (provider *AlertProvider) IsValid() bool {
|
||||
return len(provider.WebhookUrl) > 0
|
||||
}
|
||||
|
||||
// ToCustomAlertProvider converts the provider into a custom.AlertProvider
|
||||
func (provider *AlertProvider) ToCustomAlertProvider(service *core.Service, alert *core.Alert, result *core.Result, resolved bool) *custom.AlertProvider {
|
||||
var message string
|
||||
var color string
|
||||
|
||||
@@ -8,6 +8,7 @@ import (
|
||||
"net/url"
|
||||
)
|
||||
|
||||
// AlertProvider is the configuration necessary for sending an alert using Twilio
|
||||
type AlertProvider struct {
|
||||
SID string `yaml:"sid"`
|
||||
Token string `yaml:"token"`
|
||||
@@ -15,10 +16,12 @@ type AlertProvider struct {
|
||||
To string `yaml:"to"`
|
||||
}
|
||||
|
||||
// IsValid returns whether the provider's configuration is valid
|
||||
func (provider *AlertProvider) IsValid() bool {
|
||||
return len(provider.Token) > 0 && len(provider.SID) > 0 && len(provider.From) > 0 && len(provider.To) > 0
|
||||
}
|
||||
|
||||
// ToCustomAlertProvider converts the provider into a custom.AlertProvider
|
||||
func (provider *AlertProvider) ToCustomAlertProvider(service *core.Service, alert *core.Alert, result *core.Result, resolved bool) *custom.AlertProvider {
|
||||
var message string
|
||||
if resolved {
|
||||
|
||||
@@ -1,19 +1,45 @@
|
||||
package client
|
||||
|
||||
import (
|
||||
"crypto/tls"
|
||||
"net"
|
||||
"net/http"
|
||||
"time"
|
||||
)
|
||||
|
||||
var (
|
||||
client *http.Client
|
||||
secureHttpClient *http.Client
|
||||
insecureHttpClient *http.Client
|
||||
)
|
||||
|
||||
func GetHttpClient() *http.Client {
|
||||
if client == nil {
|
||||
client = &http.Client{
|
||||
Timeout: time.Second * 10,
|
||||
func GetHttpClient(insecure bool) *http.Client {
|
||||
if insecure {
|
||||
if insecureHttpClient == nil {
|
||||
insecureHttpClient = &http.Client{
|
||||
Timeout: time.Second * 10,
|
||||
Transport: &http.Transport{
|
||||
TLSClientConfig: &tls.Config{
|
||||
InsecureSkipVerify: true,
|
||||
},
|
||||
},
|
||||
}
|
||||
}
|
||||
return insecureHttpClient
|
||||
} else {
|
||||
if secureHttpClient == nil {
|
||||
secureHttpClient = &http.Client{
|
||||
Timeout: time.Second * 10,
|
||||
}
|
||||
}
|
||||
return secureHttpClient
|
||||
}
|
||||
return client
|
||||
}
|
||||
|
||||
func CanCreateConnectionToTcpService(address string) bool {
|
||||
conn, err := net.DialTimeout("tcp", address, 5*time.Second)
|
||||
if err != nil {
|
||||
return false
|
||||
}
|
||||
_ = conn.Close()
|
||||
return true
|
||||
}
|
||||
|
||||
@@ -1,13 +1,28 @@
|
||||
package client
|
||||
|
||||
import "testing"
|
||||
import (
|
||||
"testing"
|
||||
)
|
||||
|
||||
func TestGetHttpClient(t *testing.T) {
|
||||
if client != nil {
|
||||
t.Error("client should've been nil since it hasn't been called a single time yet")
|
||||
if secureHttpClient != nil {
|
||||
t.Error("secureHttpClient should've been nil since it hasn't been called a single time yet")
|
||||
}
|
||||
_ = GetHttpClient()
|
||||
if client == nil {
|
||||
t.Error("client shouldn't have been nil, since it has been called once")
|
||||
if insecureHttpClient != nil {
|
||||
t.Error("insecureHttpClient should've been nil since it hasn't been called a single time yet")
|
||||
}
|
||||
_ = GetHttpClient(false)
|
||||
if secureHttpClient == nil {
|
||||
t.Error("secureHttpClient shouldn't have been nil, since it has been called once")
|
||||
}
|
||||
if insecureHttpClient != nil {
|
||||
t.Error("insecureHttpClient should've been nil since it hasn't been called a single time yet")
|
||||
}
|
||||
_ = GetHttpClient(true)
|
||||
if secureHttpClient == nil {
|
||||
t.Error("secureHttpClient shouldn't have been nil, since it has been called once")
|
||||
}
|
||||
if insecureHttpClient == nil {
|
||||
t.Error("insecureHttpClient shouldn't have been nil, since it has been called once")
|
||||
}
|
||||
}
|
||||
|
||||
@@ -5,6 +5,7 @@ import (
|
||||
"github.com/TwinProduction/gatus/alerting"
|
||||
"github.com/TwinProduction/gatus/alerting/provider"
|
||||
"github.com/TwinProduction/gatus/core"
|
||||
"github.com/TwinProduction/gatus/security"
|
||||
"gopkg.in/yaml.v2"
|
||||
"io/ioutil"
|
||||
"log"
|
||||
@@ -12,19 +13,24 @@ import (
|
||||
)
|
||||
|
||||
const (
|
||||
// DefaultConfigurationFilePath is the default path that will be used to search for the configuration file
|
||||
// if a custom path isn't configured through the GATUS_CONFIG_FILE environment variable
|
||||
DefaultConfigurationFilePath = "config/config.yaml"
|
||||
)
|
||||
|
||||
var (
|
||||
ErrNoServiceInConfig = errors.New("configuration file should contain at least 1 service")
|
||||
ErrConfigFileNotFound = errors.New("configuration file not found")
|
||||
ErrConfigNotLoaded = errors.New("configuration is nil")
|
||||
config *Config
|
||||
ErrNoServiceInConfig = errors.New("configuration file should contain at least 1 service")
|
||||
ErrConfigFileNotFound = errors.New("configuration file not found")
|
||||
ErrConfigNotLoaded = errors.New("configuration is nil")
|
||||
ErrInvalidSecurityConfig = errors.New("invalid security configuration")
|
||||
config *Config
|
||||
)
|
||||
|
||||
// Config is the main configuration structure
|
||||
type Config struct {
|
||||
Metrics bool `yaml:"metrics"`
|
||||
Debug bool `yaml:"debug"`
|
||||
Security *security.Config `yaml:"security"`
|
||||
Alerting *alerting.Config `yaml:"alerting"`
|
||||
Services []*core.Service `yaml:"services"`
|
||||
}
|
||||
@@ -80,6 +86,7 @@ func parseAndValidateConfigBytes(yamlBytes []byte) (config *Config, err error) {
|
||||
err = ErrNoServiceInConfig
|
||||
} else {
|
||||
validateAlertingConfig(config)
|
||||
validateSecurityConfig(config)
|
||||
validateServicesConfig(config)
|
||||
}
|
||||
return
|
||||
@@ -95,6 +102,20 @@ func validateServicesConfig(config *Config) {
|
||||
log.Printf("[config][validateServicesConfig] Validated %d services", len(config.Services))
|
||||
}
|
||||
|
||||
func validateSecurityConfig(config *Config) {
|
||||
if config.Security != nil {
|
||||
if config.Security.IsValid() {
|
||||
if config.Debug {
|
||||
log.Printf("[config][validateSecurityConfig] Basic security configuration has been validated")
|
||||
}
|
||||
} else {
|
||||
// If there was an attempt to configure security, then it must mean that some confidential or private
|
||||
// data are exposed. As a result, we'll force a panic because it's better to be safe than sorry.
|
||||
panic(ErrInvalidSecurityConfig)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func validateAlertingConfig(config *Config) {
|
||||
if config.Alerting == nil {
|
||||
log.Printf("[config][validateAlertingConfig] Alerting is not configured")
|
||||
|
||||
@@ -1,6 +1,7 @@
|
||||
package config
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"github.com/TwinProduction/gatus/core"
|
||||
"testing"
|
||||
"time"
|
||||
@@ -217,3 +218,56 @@ services:
|
||||
t.Fatal("PagerDuty alerting config should've been invalid")
|
||||
}
|
||||
}
|
||||
|
||||
func TestParseAndValidateConfigBytesWithInvalidSecurityConfig(t *testing.T) {
|
||||
defer func() { recover() }()
|
||||
_, _ = parseAndValidateConfigBytes([]byte(`
|
||||
security:
|
||||
basic:
|
||||
username: "admin"
|
||||
password-sha512: "invalid-sha512-hash"
|
||||
services:
|
||||
- name: twinnation
|
||||
url: https://twinnation.org/actuator/health
|
||||
conditions:
|
||||
- "[STATUS] == 200"
|
||||
`))
|
||||
t.Error("Function should've panicked")
|
||||
}
|
||||
|
||||
func TestParseAndValidateConfigBytesWithValidSecurityConfig(t *testing.T) {
|
||||
const expectedUsername = "admin"
|
||||
const expectedPasswordHash = "6b97ed68d14eb3f1aa959ce5d49c7dc612e1eb1dafd73b1e705847483fd6a6c809f2ceb4e8df6ff9984c6298ff0285cace6614bf8daa9f0070101b6c89899e22"
|
||||
config, err := parseAndValidateConfigBytes([]byte(fmt.Sprintf(`
|
||||
security:
|
||||
basic:
|
||||
username: "%s"
|
||||
password-sha512: "%s"
|
||||
services:
|
||||
- name: twinnation
|
||||
url: https://twinnation.org/actuator/health
|
||||
conditions:
|
||||
- "[STATUS] == 200"
|
||||
`, expectedUsername, expectedPasswordHash)))
|
||||
if err != nil {
|
||||
t.Error("No error should've been returned")
|
||||
}
|
||||
if config == nil {
|
||||
t.Fatal("Config shouldn't have been nil")
|
||||
}
|
||||
if config.Security == nil {
|
||||
t.Fatal("config.Security shouldn't have been nil")
|
||||
}
|
||||
if !config.Security.IsValid() {
|
||||
t.Error("Security config should've been valid")
|
||||
}
|
||||
if config.Security.Basic == nil {
|
||||
t.Fatal("config.Security.Basic shouldn't have been nil")
|
||||
}
|
||||
if config.Security.Basic.Username != expectedUsername {
|
||||
t.Errorf("config.Security.Basic.Username should've been %s, but was %s", expectedUsername, config.Security.Basic.Username)
|
||||
}
|
||||
if config.Security.Basic.PasswordSha512Hash != expectedPasswordHash {
|
||||
t.Errorf("config.Security.Basic.PasswordSha512Hash should've been %s, but was %s", expectedPasswordHash, config.Security.Basic.PasswordSha512Hash)
|
||||
}
|
||||
}
|
||||
|
||||
@@ -2,23 +2,61 @@ package core
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"github.com/TwinProduction/gatus/jsonpath"
|
||||
"github.com/TwinProduction/gatus/pattern"
|
||||
"log"
|
||||
"strconv"
|
||||
"strings"
|
||||
)
|
||||
|
||||
const (
|
||||
// StatusPlaceholder is a placeholder for a HTTP status.
|
||||
//
|
||||
// Values that could replace the placeholder: 200, 404, 500, ...
|
||||
StatusPlaceholder = "[STATUS]"
|
||||
|
||||
// IPPlaceHolder is a placeholder for an IP.
|
||||
//
|
||||
// Values that could replace the placeholder: 127.0.0.1, 10.0.0.1, ...
|
||||
IPPlaceHolder = "[IP]"
|
||||
|
||||
// ResponseTimePlaceHolder is a placeholder for the request response time, in milliseconds.
|
||||
//
|
||||
// Values that could replace the placeholder: 1, 500, 1000, ...
|
||||
ResponseTimePlaceHolder = "[RESPONSE_TIME]"
|
||||
|
||||
// BodyPlaceHolder is a placeholder for the body of the response
|
||||
//
|
||||
// Values that could replace the placeholder: {}, {"data":{"name":"john"}}, ...
|
||||
BodyPlaceHolder = "[BODY]"
|
||||
|
||||
// ConnectedPlaceHolder is a placeholder for whether a connection was successfully established.
|
||||
//
|
||||
// Values that could replace the placeholder: true, false
|
||||
ConnectedPlaceHolder = "[CONNECTED]"
|
||||
|
||||
LengthFunctionPrefix = "len("
|
||||
PatternFunctionPrefix = "pat("
|
||||
FunctionSuffix = ")"
|
||||
|
||||
InvalidConditionElementSuffix = "(INVALID)"
|
||||
)
|
||||
|
||||
// Condition is a condition that needs to be met in order for a Service to be considered healthy.
|
||||
type Condition string
|
||||
|
||||
// evaluate the Condition with the Result of the health check
|
||||
func (c *Condition) evaluate(result *Result) bool {
|
||||
condition := string(*c)
|
||||
success := false
|
||||
var resolvedCondition string
|
||||
if strings.Contains(condition, "==") {
|
||||
parts := sanitizeAndResolve(strings.Split(condition, "=="), result)
|
||||
success = parts[0] == parts[1]
|
||||
success = isEqual(parts[0], parts[1])
|
||||
resolvedCondition = fmt.Sprintf("%v == %v", parts[0], parts[1])
|
||||
} else if strings.Contains(condition, "!=") {
|
||||
parts := sanitizeAndResolve(strings.Split(condition, "!="), result)
|
||||
success = parts[0] != parts[1]
|
||||
success = !isEqual(parts[0], parts[1])
|
||||
resolvedCondition = fmt.Sprintf("%v != %v", parts[0], parts[1])
|
||||
} else if strings.Contains(condition, "<=") {
|
||||
parts := sanitizeAndResolveNumerical(strings.Split(condition, "<="), result)
|
||||
@@ -49,3 +87,83 @@ func (c *Condition) evaluate(result *Result) bool {
|
||||
result.ConditionResults = append(result.ConditionResults, &ConditionResult{Condition: conditionToDisplay, Success: success})
|
||||
return success
|
||||
}
|
||||
|
||||
// isEqual compares two strings.
|
||||
//
|
||||
// It also supports the pattern function. That is to say, if one of the strings starts with PatternFunctionPrefix
|
||||
// and ends with FunctionSuffix, it will be treated like a pattern.
|
||||
func isEqual(first, second string) bool {
|
||||
var isFirstPattern, isSecondPattern bool
|
||||
if strings.HasPrefix(first, PatternFunctionPrefix) && strings.HasSuffix(first, FunctionSuffix) {
|
||||
isFirstPattern = true
|
||||
first = strings.TrimSuffix(strings.TrimPrefix(first, PatternFunctionPrefix), FunctionSuffix)
|
||||
}
|
||||
if strings.HasPrefix(second, PatternFunctionPrefix) && strings.HasSuffix(second, FunctionSuffix) {
|
||||
isSecondPattern = true
|
||||
second = strings.TrimSuffix(strings.TrimPrefix(second, PatternFunctionPrefix), FunctionSuffix)
|
||||
}
|
||||
if isFirstPattern && !isSecondPattern {
|
||||
return pattern.Match(first, second)
|
||||
} else if !isFirstPattern && isSecondPattern {
|
||||
return pattern.Match(second, first)
|
||||
} else {
|
||||
return first == second
|
||||
}
|
||||
}
|
||||
|
||||
// sanitizeAndResolve sanitizes and resolves a list of element and returns the list of resolved elements
|
||||
func sanitizeAndResolve(list []string, result *Result) []string {
|
||||
var sanitizedList []string
|
||||
body := strings.TrimSpace(string(result.Body))
|
||||
for _, element := range list {
|
||||
element = strings.TrimSpace(element)
|
||||
switch strings.ToUpper(element) {
|
||||
case StatusPlaceholder:
|
||||
element = strconv.Itoa(result.HttpStatus)
|
||||
case IPPlaceHolder:
|
||||
element = result.Ip
|
||||
case ResponseTimePlaceHolder:
|
||||
element = strconv.Itoa(int(result.Duration.Milliseconds()))
|
||||
case BodyPlaceHolder:
|
||||
element = body
|
||||
case ConnectedPlaceHolder:
|
||||
element = strconv.FormatBool(result.Connected)
|
||||
default:
|
||||
// if contains the BodyPlaceHolder, then evaluate json path
|
||||
if strings.Contains(element, BodyPlaceHolder) {
|
||||
wantLength := false
|
||||
if strings.HasPrefix(element, LengthFunctionPrefix) && strings.HasSuffix(element, FunctionSuffix) {
|
||||
wantLength = true
|
||||
element = strings.TrimSuffix(strings.TrimPrefix(element, LengthFunctionPrefix), FunctionSuffix)
|
||||
}
|
||||
resolvedElement, resolvedElementLength, err := jsonpath.Eval(strings.Replace(element, fmt.Sprintf("%s.", BodyPlaceHolder), "", 1), result.Body)
|
||||
if err != nil {
|
||||
result.Errors = append(result.Errors, err.Error())
|
||||
element = fmt.Sprintf("%s %s", element, InvalidConditionElementSuffix)
|
||||
} else {
|
||||
if wantLength {
|
||||
element = fmt.Sprintf("%d", resolvedElementLength)
|
||||
} else {
|
||||
element = resolvedElement
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
sanitizedList = append(sanitizedList, element)
|
||||
}
|
||||
return sanitizedList
|
||||
}
|
||||
|
||||
func sanitizeAndResolveNumerical(list []string, result *Result) []int {
|
||||
var sanitizedNumbers []int
|
||||
sanitizedList := sanitizeAndResolve(list, result)
|
||||
for _, element := range sanitizedList {
|
||||
if number, err := strconv.Atoi(element); err != nil {
|
||||
// Default to 0 if the string couldn't be converted to an integer
|
||||
sanitizedNumbers = append(sanitizedNumbers, 0)
|
||||
} else {
|
||||
sanitizedNumbers = append(sanitizedNumbers, number)
|
||||
}
|
||||
}
|
||||
return sanitizedNumbers
|
||||
}
|
||||
|
||||
@@ -113,6 +113,24 @@ func TestCondition_evaluateWithBodyJsonPathComplex(t *testing.T) {
|
||||
}
|
||||
}
|
||||
|
||||
func TestCondition_evaluateWithBodyJsonPathDoublePlaceholders(t *testing.T) {
|
||||
condition := Condition("[BODY].user.firstName != [BODY].user.lastName")
|
||||
result := &Result{Body: []byte("{\"user\": {\"firstName\": \"john\", \"lastName\": \"doe\"}}")}
|
||||
condition.evaluate(result)
|
||||
if !result.ConditionResults[0].Success {
|
||||
t.Errorf("Condition '%s' should have been a success", condition)
|
||||
}
|
||||
}
|
||||
|
||||
func TestCondition_evaluateWithBodyJsonPathDoublePlaceholdersFailure(t *testing.T) {
|
||||
condition := Condition("[BODY].user.firstName == [BODY].user.lastName")
|
||||
result := &Result{Body: []byte("{\"user\": {\"firstName\": \"john\", \"lastName\": \"doe\"}}")}
|
||||
condition.evaluate(result)
|
||||
if result.ConditionResults[0].Success {
|
||||
t.Errorf("Condition '%s' should have been a failure", condition)
|
||||
}
|
||||
}
|
||||
|
||||
func TestCondition_evaluateWithBodyJsonPathLongInt(t *testing.T) {
|
||||
condition := Condition("[BODY].data.id == 1")
|
||||
result := &Result{Body: []byte("{\"data\": {\"id\": 1}}")}
|
||||
@@ -184,3 +202,84 @@ func TestCondition_evaluateWithBodyStringLength(t *testing.T) {
|
||||
t.Errorf("Condition '%s' should have been a success", condition)
|
||||
}
|
||||
}
|
||||
|
||||
func TestCondition_evaluateWithBodyStringPattern(t *testing.T) {
|
||||
condition := Condition("[BODY].name == pat(*ohn*)")
|
||||
result := &Result{Body: []byte("{\"name\": \"john.doe\"}")}
|
||||
condition.evaluate(result)
|
||||
if !result.ConditionResults[0].Success {
|
||||
t.Errorf("Condition '%s' should have been a success", condition)
|
||||
}
|
||||
}
|
||||
|
||||
func TestCondition_evaluateWithBodyStringPatternFailure(t *testing.T) {
|
||||
condition := Condition("[BODY].name == pat(bob*)")
|
||||
result := &Result{Body: []byte("{\"name\": \"john.doe\"}")}
|
||||
condition.evaluate(result)
|
||||
if result.ConditionResults[0].Success {
|
||||
t.Errorf("Condition '%s' should have been a failure", condition)
|
||||
}
|
||||
}
|
||||
|
||||
func TestCondition_evaluateWithBodyPatternFailure(t *testing.T) {
|
||||
condition := Condition("[BODY] == pat(*john*)")
|
||||
result := &Result{Body: []byte("{\"name\": \"john.doe\"}")}
|
||||
condition.evaluate(result)
|
||||
if !result.ConditionResults[0].Success {
|
||||
t.Errorf("Condition '%s' should have been a success", condition)
|
||||
}
|
||||
}
|
||||
|
||||
func TestCondition_evaluateWithIPPattern(t *testing.T) {
|
||||
condition := Condition("[IP] == pat(10.*)")
|
||||
result := &Result{Ip: "10.0.0.0"}
|
||||
condition.evaluate(result)
|
||||
if !result.ConditionResults[0].Success {
|
||||
t.Errorf("Condition '%s' should have been a success", condition)
|
||||
}
|
||||
}
|
||||
|
||||
func TestCondition_evaluateWithIPPatternFailure(t *testing.T) {
|
||||
condition := Condition("[IP] == pat(10.*)")
|
||||
result := &Result{Ip: "255.255.255.255"}
|
||||
condition.evaluate(result)
|
||||
if result.ConditionResults[0].Success {
|
||||
t.Errorf("Condition '%s' should have been a failure", condition)
|
||||
}
|
||||
}
|
||||
|
||||
func TestCondition_evaluateWithStatusPattern(t *testing.T) {
|
||||
condition := Condition("[STATUS] == pat(4*)")
|
||||
result := &Result{HttpStatus: 404}
|
||||
condition.evaluate(result)
|
||||
if !result.ConditionResults[0].Success {
|
||||
t.Errorf("Condition '%s' should have been a success", condition)
|
||||
}
|
||||
}
|
||||
|
||||
func TestCondition_evaluateWithStatusPatternFailure(t *testing.T) {
|
||||
condition := Condition("[STATUS] != pat(4*)")
|
||||
result := &Result{HttpStatus: 404}
|
||||
condition.evaluate(result)
|
||||
if result.ConditionResults[0].Success {
|
||||
t.Errorf("Condition '%s' should have been a failure", condition)
|
||||
}
|
||||
}
|
||||
|
||||
func TestCondition_evaluateWithConnected(t *testing.T) {
|
||||
condition := Condition("[CONNECTED] == true")
|
||||
result := &Result{Connected: true}
|
||||
condition.evaluate(result)
|
||||
if !result.ConditionResults[0].Success {
|
||||
t.Errorf("Condition '%s' should have been a success", condition)
|
||||
}
|
||||
}
|
||||
|
||||
func TestCondition_evaluateWithConnectedFailure(t *testing.T) {
|
||||
condition := Condition("[CONNECTED] == true")
|
||||
result := &Result{Connected: false}
|
||||
condition.evaluate(result)
|
||||
if result.ConditionResults[0].Success {
|
||||
t.Errorf("Condition '%s' should have been a failure", condition)
|
||||
}
|
||||
}
|
||||
|
||||
@@ -9,6 +9,7 @@ import (
|
||||
"net"
|
||||
"net/http"
|
||||
"net/url"
|
||||
"strings"
|
||||
"time"
|
||||
)
|
||||
|
||||
@@ -46,6 +47,9 @@ type Service struct {
|
||||
// Alerts is the alerting configuration for the service in case of failure
|
||||
Alerts []*Alert `yaml:"alerts"`
|
||||
|
||||
// Insecure is whether to skip verifying the server's certificate chain and host name
|
||||
Insecure bool `yaml:"insecure,omitempty"`
|
||||
|
||||
NumberOfFailuresInARow int
|
||||
NumberOfSuccessesInARow int
|
||||
}
|
||||
@@ -133,19 +137,30 @@ func (service *Service) getIp(result *Result) {
|
||||
}
|
||||
|
||||
func (service *Service) call(result *Result) {
|
||||
request := service.buildRequest()
|
||||
startTime := time.Now()
|
||||
response, err := client.GetHttpClient().Do(request)
|
||||
if err != nil {
|
||||
result.Duration = time.Since(startTime)
|
||||
result.Errors = append(result.Errors, err.Error())
|
||||
return
|
||||
isServiceTcp := strings.HasPrefix(service.Url, "tcp://")
|
||||
var request *http.Request
|
||||
var response *http.Response
|
||||
var err error
|
||||
if !isServiceTcp {
|
||||
request = service.buildRequest()
|
||||
}
|
||||
result.Duration = time.Since(startTime)
|
||||
result.HttpStatus = response.StatusCode
|
||||
result.Body, err = ioutil.ReadAll(response.Body)
|
||||
if err != nil {
|
||||
result.Errors = append(result.Errors, err.Error())
|
||||
startTime := time.Now()
|
||||
if isServiceTcp {
|
||||
result.Connected = client.CanCreateConnectionToTcpService(strings.TrimPrefix(service.Url, "tcp://"))
|
||||
result.Duration = time.Since(startTime)
|
||||
} else {
|
||||
response, err = client.GetHttpClient(service.Insecure).Do(request)
|
||||
result.Duration = time.Since(startTime)
|
||||
if err != nil {
|
||||
result.Errors = append(result.Errors, err.Error())
|
||||
return
|
||||
}
|
||||
result.HttpStatus = response.StatusCode
|
||||
result.Connected = response.StatusCode > 0
|
||||
result.Body, err = ioutil.ReadAll(response.Body)
|
||||
if err != nil {
|
||||
result.Errors = append(result.Errors, err.Error())
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
@@ -15,6 +15,9 @@ func TestIntegrationEvaluateHealth(t *testing.T) {
|
||||
if !result.ConditionResults[0].Success {
|
||||
t.Errorf("Condition '%s' should have been a success", condition)
|
||||
}
|
||||
if !result.Connected {
|
||||
t.Error("Because the connection has been established, result.Connected should've been true")
|
||||
}
|
||||
if !result.Success {
|
||||
t.Error("Because all conditions passed, this should have been a success")
|
||||
}
|
||||
@@ -31,6 +34,9 @@ func TestIntegrationEvaluateHealthWithFailure(t *testing.T) {
|
||||
if result.ConditionResults[0].Success {
|
||||
t.Errorf("Condition '%s' should have been a failure", condition)
|
||||
}
|
||||
if !result.Connected {
|
||||
t.Error("Because the connection has been established, result.Connected should've been true")
|
||||
}
|
||||
if result.Success {
|
||||
t.Error("Because one of the conditions failed, success should have been false")
|
||||
}
|
||||
|
||||
@@ -9,16 +9,37 @@ type HealthStatus struct {
|
||||
Message string `json:"message,omitempty"`
|
||||
}
|
||||
|
||||
// Result of the evaluation of a Service
|
||||
type Result struct {
|
||||
HttpStatus int `json:"status"`
|
||||
Body []byte `json:"-"`
|
||||
Hostname string `json:"hostname"`
|
||||
Ip string `json:"-"`
|
||||
Duration time.Duration `json:"duration"`
|
||||
Errors []string `json:"errors"`
|
||||
// HttpStatus is the HTTP response status code
|
||||
HttpStatus int `json:"status"`
|
||||
|
||||
// Body is the response body
|
||||
Body []byte `json:"-"`
|
||||
|
||||
// Hostname extracted from the Service Url
|
||||
Hostname string `json:"hostname"`
|
||||
|
||||
// Ip resolved from the Service Url
|
||||
Ip string `json:"-"`
|
||||
|
||||
// Connected whether a connection to the host was established successfully
|
||||
Connected bool `json:"-"`
|
||||
|
||||
// Duration time that the request took
|
||||
Duration time.Duration `json:"duration"`
|
||||
|
||||
// Errors encountered during the evaluation of the service's health
|
||||
Errors []string `json:"errors"`
|
||||
|
||||
// ConditionResults results of the service's conditions
|
||||
ConditionResults []*ConditionResult `json:"condition-results"`
|
||||
Success bool `json:"success"`
|
||||
Timestamp time.Time `json:"timestamp"`
|
||||
|
||||
// Success whether the result signifies a success or not
|
||||
Success bool `json:"success"`
|
||||
|
||||
// Timestamp when the request was sent
|
||||
Timestamp time.Time `json:"timestamp"`
|
||||
}
|
||||
|
||||
type ConditionResult struct {
|
||||
|
||||
74
core/util.go
74
core/util.go
@@ -1,74 +0,0 @@
|
||||
package core
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"github.com/TwinProduction/gatus/jsonpath"
|
||||
"strconv"
|
||||
"strings"
|
||||
)
|
||||
|
||||
const (
|
||||
StatusPlaceholder = "[STATUS]"
|
||||
IPPlaceHolder = "[IP]"
|
||||
ResponseTimePlaceHolder = "[RESPONSE_TIME]"
|
||||
BodyPlaceHolder = "[BODY]"
|
||||
|
||||
LengthFunctionPrefix = "len("
|
||||
FunctionSuffix = ")"
|
||||
|
||||
InvalidConditionElementSuffix = "(INVALID)"
|
||||
)
|
||||
|
||||
func sanitizeAndResolve(list []string, result *Result) []string {
|
||||
var sanitizedList []string
|
||||
body := strings.TrimSpace(string(result.Body))
|
||||
for _, element := range list {
|
||||
element = strings.TrimSpace(element)
|
||||
switch strings.ToUpper(element) {
|
||||
case StatusPlaceholder:
|
||||
element = strconv.Itoa(result.HttpStatus)
|
||||
case IPPlaceHolder:
|
||||
element = result.Ip
|
||||
case ResponseTimePlaceHolder:
|
||||
element = strconv.Itoa(int(result.Duration.Milliseconds()))
|
||||
case BodyPlaceHolder:
|
||||
element = body
|
||||
default:
|
||||
// if starts with BodyPlaceHolder, then evaluate json path
|
||||
if strings.Contains(element, BodyPlaceHolder) {
|
||||
wantLength := false
|
||||
if strings.HasPrefix(element, LengthFunctionPrefix) && strings.HasSuffix(element, FunctionSuffix) {
|
||||
wantLength = true
|
||||
element = strings.TrimSuffix(strings.TrimPrefix(element, LengthFunctionPrefix), FunctionSuffix)
|
||||
}
|
||||
resolvedElement, resolvedElementLength, err := jsonpath.Eval(strings.Replace(element, fmt.Sprintf("%s.", BodyPlaceHolder), "", 1), result.Body)
|
||||
if err != nil {
|
||||
result.Errors = append(result.Errors, err.Error())
|
||||
element = fmt.Sprintf("%s %s", element, InvalidConditionElementSuffix)
|
||||
} else {
|
||||
if wantLength {
|
||||
element = fmt.Sprintf("%d", resolvedElementLength)
|
||||
} else {
|
||||
element = resolvedElement
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
sanitizedList = append(sanitizedList, element)
|
||||
}
|
||||
return sanitizedList
|
||||
}
|
||||
|
||||
func sanitizeAndResolveNumerical(list []string, result *Result) []int {
|
||||
var sanitizedNumbers []int
|
||||
sanitizedList := sanitizeAndResolve(list, result)
|
||||
for _, element := range sanitizedList {
|
||||
if number, err := strconv.Atoi(element); err != nil {
|
||||
// Default to 0 if the string couldn't be converted to an integer
|
||||
sanitizedNumbers = append(sanitizedNumbers, 0)
|
||||
} else {
|
||||
sanitizedNumbers = append(sanitizedNumbers, number)
|
||||
}
|
||||
}
|
||||
return sanitizedNumbers
|
||||
}
|
||||
7
main.go
7
main.go
@@ -4,6 +4,7 @@ import (
|
||||
"bytes"
|
||||
"compress/gzip"
|
||||
"github.com/TwinProduction/gatus/config"
|
||||
"github.com/TwinProduction/gatus/security"
|
||||
"github.com/TwinProduction/gatus/watchdog"
|
||||
"github.com/prometheus/client_golang/prometheus/promhttp"
|
||||
"log"
|
||||
@@ -23,7 +24,11 @@ var (
|
||||
|
||||
func main() {
|
||||
cfg := loadConfiguration()
|
||||
http.HandleFunc("/api/v1/results", serviceResultsHandler)
|
||||
resultsHandler := serviceResultsHandler
|
||||
if cfg.Security != nil && cfg.Security.IsValid() {
|
||||
resultsHandler = security.Handler(serviceResultsHandler, cfg.Security)
|
||||
}
|
||||
http.HandleFunc("/api/v1/results", resultsHandler)
|
||||
http.HandleFunc("/health", healthHandler)
|
||||
http.Handle("/", GzipHandler(http.FileServer(http.Dir("./static"))))
|
||||
if cfg.Metrics {
|
||||
|
||||
12
pattern/pattern.go
Normal file
12
pattern/pattern.go
Normal file
@@ -0,0 +1,12 @@
|
||||
package pattern
|
||||
|
||||
import "path/filepath"
|
||||
|
||||
// Match checks whether a string matches a pattern
|
||||
func Match(pattern, s string) bool {
|
||||
if pattern == "*" {
|
||||
return true
|
||||
}
|
||||
matched, _ := filepath.Match(pattern, s)
|
||||
return matched
|
||||
}
|
||||
37
pattern/pattern_test.go
Normal file
37
pattern/pattern_test.go
Normal file
@@ -0,0 +1,37 @@
|
||||
package pattern
|
||||
|
||||
import "testing"
|
||||
|
||||
func TestMatch(t *testing.T) {
|
||||
testMatch(t, "*", "livingroom_123", true)
|
||||
testMatch(t, "**", "livingroom_123", true)
|
||||
testMatch(t, "living*", "livingroom_123", true)
|
||||
testMatch(t, "*living*", "livingroom_123", true)
|
||||
testMatch(t, "*123", "livingroom_123", true)
|
||||
testMatch(t, "*_*", "livingroom_123", true)
|
||||
testMatch(t, "living*_*3", "livingroom_123", true)
|
||||
testMatch(t, "living*room_*3", "livingroom_123", true)
|
||||
testMatch(t, "living*room_*3", "livingroom_123", true)
|
||||
testMatch(t, "*vin*om*2*", "livingroom_123", true)
|
||||
testMatch(t, "livingroom_123", "livingroom_123", true)
|
||||
testMatch(t, "*livingroom_123*", "livingroom_123", true)
|
||||
testMatch(t, "livingroom", "livingroom_123", false)
|
||||
testMatch(t, "livingroom123", "livingroom_123", false)
|
||||
testMatch(t, "what", "livingroom_123", false)
|
||||
testMatch(t, "*what*", "livingroom_123", false)
|
||||
testMatch(t, "*.*", "livingroom_123", false)
|
||||
testMatch(t, "room*123", "livingroom_123", false)
|
||||
}
|
||||
|
||||
func testMatch(t *testing.T, pattern, key string, expectedToMatch bool) {
|
||||
matched := Match(pattern, key)
|
||||
if expectedToMatch {
|
||||
if !matched {
|
||||
t.Errorf("%s should've matched pattern '%s'", key, pattern)
|
||||
}
|
||||
} else {
|
||||
if matched {
|
||||
t.Errorf("%s shouldn't have matched pattern '%s'", key, pattern)
|
||||
}
|
||||
}
|
||||
}
|
||||
18
security/handler.go
Normal file
18
security/handler.go
Normal file
@@ -0,0 +1,18 @@
|
||||
package security
|
||||
|
||||
import (
|
||||
"net/http"
|
||||
)
|
||||
|
||||
func Handler(handler http.HandlerFunc, security *Config) http.HandlerFunc {
|
||||
return func(w http.ResponseWriter, r *http.Request) {
|
||||
usernameEntered, passwordEntered, ok := r.BasicAuth()
|
||||
if !ok || usernameEntered != security.Basic.Username || Sha512(passwordEntered) != security.Basic.PasswordSha512Hash {
|
||||
w.Header().Set("WWW-Authenticate", "Basic")
|
||||
w.WriteHeader(http.StatusUnauthorized)
|
||||
_, _ = w.Write([]byte("Unauthorized"))
|
||||
return
|
||||
}
|
||||
handler(w, r)
|
||||
}
|
||||
}
|
||||
58
security/handler_test.go
Normal file
58
security/handler_test.go
Normal file
@@ -0,0 +1,58 @@
|
||||
package security
|
||||
|
||||
import (
|
||||
"net/http"
|
||||
"net/http/httptest"
|
||||
"testing"
|
||||
)
|
||||
|
||||
func mockHandler(writer http.ResponseWriter, _ *http.Request) {
|
||||
writer.WriteHeader(200)
|
||||
}
|
||||
|
||||
func TestHandlerWhenNotAuthenticated(t *testing.T) {
|
||||
handler := Handler(mockHandler, &Config{&BasicConfig{
|
||||
Username: "john.doe",
|
||||
PasswordSha512Hash: "6b97ed68d14eb3f1aa959ce5d49c7dc612e1eb1dafd73b1e705847483fd6a6c809f2ceb4e8df6ff9984c6298ff0285cace6614bf8daa9f0070101b6c89899e22",
|
||||
}})
|
||||
request, _ := http.NewRequest("GET", "/api/v1/results", nil)
|
||||
responseRecorder := httptest.NewRecorder()
|
||||
|
||||
handler.ServeHTTP(responseRecorder, request)
|
||||
|
||||
if responseRecorder.Code != http.StatusUnauthorized {
|
||||
t.Error("Expected code to be 401, but was", responseRecorder.Code)
|
||||
}
|
||||
}
|
||||
|
||||
func TestHandlerWhenAuthenticated(t *testing.T) {
|
||||
handler := Handler(mockHandler, &Config{&BasicConfig{
|
||||
Username: "john.doe",
|
||||
PasswordSha512Hash: "6b97ed68d14eb3f1aa959ce5d49c7dc612e1eb1dafd73b1e705847483fd6a6c809f2ceb4e8df6ff9984c6298ff0285cace6614bf8daa9f0070101b6c89899e22",
|
||||
}})
|
||||
request, _ := http.NewRequest("GET", "/api/v1/results", nil)
|
||||
request.SetBasicAuth("john.doe", "hunter2")
|
||||
responseRecorder := httptest.NewRecorder()
|
||||
|
||||
handler.ServeHTTP(responseRecorder, request)
|
||||
|
||||
if responseRecorder.Code != http.StatusOK {
|
||||
t.Error("Expected code to be 200, but was", responseRecorder.Code)
|
||||
}
|
||||
}
|
||||
|
||||
func TestHandlerWhenAuthenticatedWithBadCredentials(t *testing.T) {
|
||||
handler := Handler(mockHandler, &Config{&BasicConfig{
|
||||
Username: "john.doe",
|
||||
PasswordSha512Hash: "6b97ed68d14eb3f1aa959ce5d49c7dc612e1eb1dafd73b1e705847483fd6a6c809f2ceb4e8df6ff9984c6298ff0285cace6614bf8daa9f0070101b6c89899e22",
|
||||
}})
|
||||
request, _ := http.NewRequest("GET", "/api/v1/results", nil)
|
||||
request.SetBasicAuth("john.doe", "bad-password")
|
||||
responseRecorder := httptest.NewRecorder()
|
||||
|
||||
handler.ServeHTTP(responseRecorder, request)
|
||||
|
||||
if responseRecorder.Code != http.StatusUnauthorized {
|
||||
t.Error("Expected code to be 401, but was", responseRecorder.Code)
|
||||
}
|
||||
}
|
||||
18
security/security.go
Normal file
18
security/security.go
Normal file
@@ -0,0 +1,18 @@
|
||||
package security
|
||||
|
||||
type Config struct {
|
||||
Basic *BasicConfig `yaml:"basic"`
|
||||
}
|
||||
|
||||
func (c *Config) IsValid() bool {
|
||||
return c.Basic != nil && c.Basic.IsValid()
|
||||
}
|
||||
|
||||
type BasicConfig struct {
|
||||
Username string `yaml:"username"`
|
||||
PasswordSha512Hash string `yaml:"password-sha512"`
|
||||
}
|
||||
|
||||
func (c *BasicConfig) IsValid() bool {
|
||||
return len(c.Username) > 0 && len(c.PasswordSha512Hash) == 128
|
||||
}
|
||||
23
security/security_test.go
Normal file
23
security/security_test.go
Normal file
@@ -0,0 +1,23 @@
|
||||
package security
|
||||
|
||||
import "testing"
|
||||
|
||||
func TestBasicConfig_IsValid(t *testing.T) {
|
||||
basicConfig := &BasicConfig{
|
||||
Username: "admin",
|
||||
PasswordSha512Hash: Sha512("test"),
|
||||
}
|
||||
if !basicConfig.IsValid() {
|
||||
t.Error("basicConfig should've been valid")
|
||||
}
|
||||
}
|
||||
|
||||
func TestBasicConfig_IsValidWhenPasswordIsInvalid(t *testing.T) {
|
||||
basicConfig := &BasicConfig{
|
||||
Username: "admin",
|
||||
PasswordSha512Hash: "",
|
||||
}
|
||||
if basicConfig.IsValid() {
|
||||
t.Error("basicConfig shouldn't have been valid")
|
||||
}
|
||||
}
|
||||
12
security/sha512.go
Normal file
12
security/sha512.go
Normal file
@@ -0,0 +1,12 @@
|
||||
package security
|
||||
|
||||
import (
|
||||
"crypto/sha512"
|
||||
"fmt"
|
||||
)
|
||||
|
||||
func Sha512(s string) string {
|
||||
hash := sha512.New()
|
||||
hash.Write([]byte(s))
|
||||
return fmt.Sprintf("%x", hash.Sum(nil))
|
||||
}
|
||||
12
security/sha512_test.go
Normal file
12
security/sha512_test.go
Normal file
@@ -0,0 +1,12 @@
|
||||
package security
|
||||
|
||||
import "testing"
|
||||
|
||||
func TestSha512(t *testing.T) {
|
||||
input := "password"
|
||||
expectedHash := "b109f3bbbc244eb82441917ed06d618b9008dd09b3befd1b5e07394c706a8bb980b1d7785e5976ec049b46df5f1326af5a2ea6d103fd07c95385ffab0cacbc86"
|
||||
hash := Sha512(input)
|
||||
if hash != expectedHash {
|
||||
t.Errorf("Expected hash to be '%s', but was '%s'", expectedHash, hash)
|
||||
}
|
||||
}
|
||||
@@ -90,6 +90,15 @@
|
||||
#social img:hover {
|
||||
opacity: 1;
|
||||
}
|
||||
#settings {
|
||||
position: fixed;
|
||||
left: 5px;
|
||||
bottom: 5px;
|
||||
padding: 5px;
|
||||
}
|
||||
#settings select:focus {
|
||||
box-shadow: none;
|
||||
}
|
||||
</style>
|
||||
</head>
|
||||
<body>
|
||||
@@ -128,9 +137,26 @@
|
||||
</a>
|
||||
</div>
|
||||
|
||||
<div id="settings">
|
||||
<div class="input-group input-group-sm">
|
||||
<div class="input-group-prepend">
|
||||
<div class="input-group-text">↻</div>
|
||||
</div>
|
||||
<select class="form-control form-control-sm" id="refresh-rate">
|
||||
<option value="10">10s</option>
|
||||
<option value="30" selected>30s</option>
|
||||
<option value="60">1m</option>
|
||||
<option value="120">2m</option>
|
||||
<option value="300">5m</option>
|
||||
<option value="600">10m</option>
|
||||
</select>
|
||||
</div>
|
||||
</div>
|
||||
|
||||
<script>
|
||||
let serviceStatuses = {};
|
||||
let timerHandler = 0;
|
||||
let refreshIntervalHandler = 0;
|
||||
let userClickedStatus = false;
|
||||
|
||||
function showTooltip(serviceName, index, element) {
|
||||
@@ -291,10 +317,19 @@
|
||||
.replace(/'/g, ''');
|
||||
}
|
||||
|
||||
refreshResults();
|
||||
setInterval(function() {
|
||||
function setRefreshInterval(seconds) {
|
||||
refreshResults();
|
||||
}, 30000);
|
||||
refreshIntervalHandler = setInterval(function() {
|
||||
refreshResults();
|
||||
}, seconds * 1000)
|
||||
}
|
||||
|
||||
$("#refresh-rate").change(function() {
|
||||
clearInterval(refreshIntervalHandler);
|
||||
setRefreshInterval($(this).val())
|
||||
});
|
||||
setRefreshInterval(30);
|
||||
$("#refresh-rate").val(30);
|
||||
</script>
|
||||
</body>
|
||||
</html>
|
||||
|
||||
@@ -30,13 +30,13 @@ func handleAlertsToTrigger(service *core.Service, result *core.Result, cfg *conf
|
||||
}
|
||||
if alert.Triggered {
|
||||
if cfg.Debug {
|
||||
log.Printf("[watchdog][handleAlertsToTrigger] Alert with description='%s' has already been triggered, skipping", alert.Description)
|
||||
log.Printf("[watchdog][handleAlertsToTrigger] Alert with description='%s' has already been TRIGGERED, skipping", alert.Description)
|
||||
}
|
||||
continue
|
||||
}
|
||||
alertProvider := config.GetAlertingProviderByAlertType(cfg, alert.Type)
|
||||
if alertProvider != nil && alertProvider.IsValid() {
|
||||
log.Printf("[watchdog][handleAlertsToTrigger] Sending %s alert because alert with description='%s' has been triggered", alert.Type, alert.Description)
|
||||
log.Printf("[watchdog][handleAlertsToTrigger] Sending %s alert because alert with description='%s' has been TRIGGERED", alert.Type, alert.Description)
|
||||
customAlertProvider := alertProvider.ToCustomAlertProvider(service, alert, result, false)
|
||||
// TODO: retry on error
|
||||
var err error
|
||||
@@ -64,7 +64,7 @@ func handleAlertsToTrigger(service *core.Service, result *core.Result, cfg *conf
|
||||
}
|
||||
|
||||
} else {
|
||||
log.Printf("[watchdog][handleAlertsToResolve] Not sending alert of type=%s despite being triggered, because the provider wasn't configured properly", alert.Type)
|
||||
log.Printf("[watchdog][handleAlertsToResolve] Not sending alert of type=%s despite being TRIGGERED, because the provider wasn't configured properly", alert.Type)
|
||||
}
|
||||
}
|
||||
}
|
||||
@@ -81,7 +81,7 @@ func handleAlertsToResolve(service *core.Service, result *core.Result, cfg *conf
|
||||
}
|
||||
alertProvider := config.GetAlertingProviderByAlertType(cfg, alert.Type)
|
||||
if alertProvider != nil && alertProvider.IsValid() {
|
||||
log.Printf("[watchdog][handleAlertsToResolve] Sending %s alert because alert with description='%s' has been resolved", alert.Type, alert.Description)
|
||||
log.Printf("[watchdog][handleAlertsToResolve] Sending %s alert because alert with description='%s' has been RESOLVED", alert.Type, alert.Description)
|
||||
customAlertProvider := alertProvider.ToCustomAlertProvider(service, alert, result, true)
|
||||
// TODO: retry on error
|
||||
_, err := customAlertProvider.Send(service.Name, alert.Description, true)
|
||||
@@ -93,7 +93,7 @@ func handleAlertsToResolve(service *core.Service, result *core.Result, cfg *conf
|
||||
}
|
||||
}
|
||||
} else {
|
||||
log.Printf("[watchdog][handleAlertsToResolve] Not sending alert of type=%s despite being resolved, because the provider wasn't configured properly", alert.Type)
|
||||
log.Printf("[watchdog][handleAlertsToResolve] Not sending alert of type=%s despite being RESOLVED, because the provider wasn't configured properly", alert.Type)
|
||||
}
|
||||
}
|
||||
service.NumberOfFailuresInARow = 0
|
||||
|
||||
Reference in New Issue
Block a user