1. It’s in pull mode

  2. It is convenient to configure in text mode, which facilitates configuration versioning

  3. There are too many plugins. What do you want to monitor

  4. I basically have to relearn all three, so why don’t I learn one recommended by Google SRE?

  1. Prometheus Server monitors data collection and storage

  2. Prometheus Alert Manager generates alarms based on alarm rules and integrates multiple alarm channels

  3. Node-exporter’s role [1] is to read indicators from the machine and expose an HTTP service from which Prometheus collects monitoring indicators. Of course Prometheus officially had a variety of exporters.

├── Environment / # Parent Directory for Our Environment-Specific directories│ │ ├─ dev/ # Contains all files directories To the dev environment│ ├─ group_vars/ # dev specific group_vars files│ │ ├─ all│ │ ├─ db│ │ ├─ web│ ├─ Hosts # Contains only the hosts in the dev environment│ │ ├─ prod/ # Contains all files specific to the PROd Environment │ ├── ├─ all│ ├─ db│ ├─ web│ ├─ └ # Contains only the hosts in the prod environment│ ├ ─ stage/ # Contains all files specific to the stage environment│ ├── all│ ├─ db│ ├─ web│ ├─ hosts # Contains only the hosts In the stage of environment │Copy the code

---- hosts: all  vars:    jenkins_plugins:      - blueocean      - ghprb      - greenballs      - workflow-aggregator    jenkins_plugin_timeout: 120  pre_tasks:    - include_tasks: java-8.yml  roles:    - geerlingguy.java    - ansible-role-jenkinsCopy the code

  1. Interface Settings

  2. A text file similar to a Dockerfile. Using a Jenkinsfile[7]

pipeline {    agent any    stages {        stage('Build') {            steps {                sh './gradlew clean build'                archiveArtifacts artifacts: '**/target/*.jar', fingerprint: true            }        }    }}Copy the code

  1. Install Ansible in Jenkins [8]

  2. Execute in Jenkinsfile

withCredentials([sshUserPrivateKey(keyFileVariable:"deploy_private",credentialsId:"deploy"),file(credentialsId: 'vault_password', variable: 'vault_password')]) {             ansiblePlaybook vaultCredentialsId: 'vault_password', inventory: "environments/prod", playbook: "playbook.yaml",             extraVars:[               ansible_ssh_private_key_file: [value: "${deploy_private}", hidden: true],               build_number: [value: "${params.build_number}", hidden: false]             ]}Copy the code

  1. AnsiblePlaybook is a pipeline syntax provided by the Jenkins Ansible plugin, similar to manual execution: ansiblePlaybook.

  2. WithCredentials is the syntax of the Credentials Binding[9] plug-in and is used to reference sensitive information, such as SSH keys and Ansible Vault passwords required for performing Ansible.

  3. Some sensitive configuration variables are encrypted using Ansible Vault[10] technology.

  1. Superbase monitoring

  2. On Gitlab

  3. Go to Jenkins and integrate with Gitlab

  4. Use Jenkins to achieve automatic compilation and packaging

  5. Use Jenkins to perform Ansible

  • CMDB construction: We use Ansible-CMDB [12] to automatically generate all current machines from inventory

  • Release management: You can customize each stage of a release on Jenkins. Publishing methods such as blue-green publishing can be implemented by modifying Ansible scripts and Inventory.

  • Automatic capacity expansion: This function is implemented by configuring Prometheus alarm rules and calling the corresponding Webhook

  • ChatOps: Actual ChatOps [13]

Related links:

1, https://github.com/prometheus/node_exporter

2, https://github.com/ernestas-poskus/ansible-prometheus

3, https://github.com/timonwong/prometheus-webhook-dingtalk

4, https://www.digitalocean.com/community/tutorials/how-to-manage-multistage-environments-with-ansible

5, http://docs.ansible.com/ansible/latest/modules/consul_module.html

6, https://github.com/geerlingguy/ansible-role-jenkins

7, https://jenkins.io/doc/book/pipeline/jenkinsfile/

8, https://wiki.jenkins.io/display/JENKINS/Ansible+Plugin

9, https://jenkins.io/doc/pipeline/steps/credentials-binding/

10, http://docs.ansible.com/ansible/2.5/user_guide/vault.html

11, https://github.com/audreyr/cookiecutter

12, https://github.com/fboender/ansible-cmdb

13, https://showme.codes/2017-10-08/chatops-in-action/