Deploying PHP Applications with Ansible
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A quick introduction to Ansible and how to deploy simple PHP applications.
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Deploying PHP Applications with Ansible
- 1. Deploying PHP applications with CC https://www.flickr.com/photos/din_bcn/2551132104/ @OrestesCA @phpvigo
- 4. 1. Deployment 2. Ansible 3. All together @OrestesCA @phpvigo
- 7. Simple blue-green deployment @OrestesCA @phpvigo -- /var/www/my-app.com |-- current -> /var/www/my-app.com/releases/20100509150741 |-- releases | |-- 20100509150741 | |-- 20100509145325 |-- shared
- 8. Blue-green deployment: demo @OrestesCA @phpvigo
- 9. Ansible 1. Setup 2. Inventory 3. Commands 4. Modules 5. Tasks 6. Roles @OrestesCA @phpvigo
- 10. What is Ansible SCM automation tool agent-less simple + powerful @OrestesCA @phpvigo
- 11. Connections Managed Node #1 Managed Node #2 Control Machine Inventory ssh @OrestesCA @phpvigo
- 12. Control Machine setup http://docs.ansible.com $ sudo pip install ansible … $ ansible ansible ansible-doc ansible-galaxy ansible- playbook ansible-pull ansible-vault @OrestesCA @phpvigo
- 13. Inventory setup $ export ANSIBLE_INVENTORY=~/ansible_hosts [vagrant] 127.0.0.1:2222 foo=bar [vagrant:vars] ansible_ssh_user=vagrant env=local http://docs.ansible.com/intro_inventory.html https://docs.ansible.com/playbooks_variables.html Precedence: -i file or $ANSIBLE_INVENTORY or /etc/ansible/hosts @OrestesCA @phpvigo
- 14. Modules $ ansible vagrant -m ping --vvvv <127.0.0.1> ESTABLISH CONNECTION FOR USER: vagrant on PORT 2222 TO 127.0.0.1 <127.0.0.1> REMOTE_MODULE ping … 127.0.0.1 | success >> { "changed": false, "ping": "pong" } $ ansible all -m ping —vvvv … @OrestesCA @phpvigo
- 15. Random fact _________________ < GATHERING FACTS > ----------------- ^__^ (oo)_______ (__) )/ ||----w | || || http://docs.ansible.com/faq.html#how-do-i-disable-cowsay export ANSIBLE_NOCOWS=1 @OrestesCA @phpvigo
- 16. Playbooks - hosts: vagrant sudo: True tasks: - name: Install ntp apt: pkg=ntp state=installed $ ansible-playbook test_playbook.yml … GATHERING FACTS ok: [127.0.0.1] TASK: [Install ntp] changed: [127.0.0.1] PLAY RECAP 127.0.0.1: ok=2 changed=1 unreachable=0 failed=0 test_playbook.yml @OrestesCA @phpvigo
- 17. Idempotence - hosts: vagrant sudo: True tasks: - name: Install ntp apt: pkg=ntp state=installed $ ansible-playbook test_playbook.yml … GATHERING FACTS ok: [127.0.0.1] TASK: [Install ntp] ok: [127.0.0.1] PLAY RECAP 127.0.0.1: ok=2 changed=0 unreachable=0 failed=0 test_playbook.yml @OrestesCA @phpvigo
- 18. Idempotence - hosts: vagrant sudo: True tasks: - name: Install ntp apt: pkg=ntp state=installed $ ansible-playbook test_playbook.yml … GATHERING FACTS ok: [127.0.0.1] TASK: [Install ntp] ok: [127.0.0.1] PLAY RECAP 127.0.0.1: ok=2 changed=0 unreachable=0 failed=0 test_playbook.yml @OrestesCA @phpvigo
- 19. Facts $ ansible vagrant -m setup 127.0.0.1 | success >> { "ansible_facts": { "ansible_all_ipv4_addresses": [ "10.0.2.15" ], "ansible_all_ipv6_addresses": [ "fe80::a00:27ff:fe6b:d3e" ], "ansible_architecture": "x86_64", "ansible_bios_date": "12/01/2006", "ansible_bios_version": "VirtualBox", … @OrestesCA @phpvigo
- 20. Templates, facts and variables - hosts: vagrant sudo: True tasks: - name: Write MOTD template: src=templates/motd dest=/etc/motd You’re now in the {{ env | upper }} environment at {{ ansible_hostname }} {{ ansible_distribution }} {{ansible_distribution_release }} {{ ansible_distribution_version }} {{ ansible_system }} {{ ansible_kernel }} {{ ansible_architecture }} test_playbook.yml templates/motd You’re now in the LOCAL environment at Debian-jessie-amd64- netboot Debian jessie 8.0 Linux 3.16.0-4-amd64 x86_64 @OrestesCA @phpvigo
- 21. Conditionals - name: Enable LOCAL env prompt indicator template: src=templates/env/local/.bash_profile dest=~/.bash_profile when: env == "local" test_playbook.yml export PS1="[$(tput setaf 2)][u@h W]$ [$(tput setaf 7)][$(tput sgr0)]" templates/.bash_profile [vagrant@Debian-jessie-amd64-netboot ~]$ https://docs.ansible.com/playbooks_conditionals.html @OrestesCA @phpvigo
- 22. Notifications and handlers - hosts: webservers vars: http_port: 80 max_clients: 200 remote_user: root tasks: - name: ensure apache is at the latest version yum: pkg=httpd state=latest - name: write the apache config file template: src=/srv/httpd.j2 dest=/etc/httpd.conf notify: - restart apache - name: ensure apache is running (and enable it at boot) service: name=httpd state=started enabled=yes handlers: - name: restart apache service: name=httpd state=restarted @OrestesCA @phpvigo
- 23. Roles site.yml roles/ common/ files/ templates/ tasks/ handlers/ vars/ defaults/ meta/ webserver/ … files https://docs.ansible.com/playbooks_roles.html https://github.com/ansible/ansible-examples - hosts: webservers roles: - common - webserver site.yml @OrestesCA @phpvigo
- 24. First steps in practice Dependencies Credentials Deployment @OrestesCA @phpvigo
- 25. Install dependencies $ ansible-playbook test_playbook.yml … /bin/sh: 1: /usr/bin/python: not found … Missing Python gather_facts: False tasks: - name: Install Python raw: apt-get install python -y - name: Gather facts after python install setup: - name: Write MOTD … test_playbook.yml @OrestesCA @phpvigo
- 26. Install dependencies $ ansible-playbook test_playbook.yml --sudo PLAY [vagrant] TASK: [Install Python] ok: [127.0.0.1] TASK: [Gather facts] ok: [127.0.0.1] TASK: [Write MOTD] changed: [127.0.0.1] PLAY RECAP 127.0.0.1: ok=3 changed=1 unreachable=0 failed=0 test_playbook.yml @OrestesCA @phpvigo
- 27. Setup remote access - name: Setup access authorized_key: user="{{ ansible_ssh_user }}" key="{{ item }}" with_file: - ~/.ssh/id_rsa.pub - /some/secure/dir/keys/admin.pub test_playbook.yml http://docs.ansible.com/authorized_key_module.html $ ansible-playbook test_playbook.yml --ask-pass SSH password: TASK: [Setup access] ok: [127.0.0.1] => (item=ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQD… orestes@mjolnir.local) … @OrestesCA @phpvigo
- 28. Simple deployment - name: Clone git repository git: > dest=/var/www/awesome-app repo=https://github.com/initech/awesome-app update=no sudo: yes sudo_user: www-data register: cloned - name: Clear cache … when: cloned|changed test_playbook.yml https://github.com/ansistrano http://www.future500.nl/articles/2014/07/thoughts-on-deploying-with-ansible/ @OrestesCA @phpvigo
- 29. Advanced deployment http://www.ansible.com/application-deployment http://docs.ansible.com/playbooks_delegation.html - hosts: webservers max_fail_percentage: 30 serial: 10 @OrestesCA @phpvigo
- 30. Learning from the community https://galaxy.ansible.com @OrestesCA @phpvigo
- 32. Using a contributed role @OrestesCA @phpvigo - name: Deploy my-app.com hosts: production vars: ansistrano_allow_anonymous_stats: no ansistrano_deploy_to: /var/www/my-app.com ansistrano_keep_releases: 10 ansistrano_deploy_via: git ansistrano_git_repo: git@bitbucket.org:orestes/my-app.com.git ansistrano_git_branch: build roles: - { role: carlosbuenosvinos.ansistrano-deploy } $ ansible-galaxy install carlosbuenosvinos.ansistrano-deploy https://github.com/ansistrano/deploy
- 34. EOF ___________________ < THAT’S ALL FOLKS! > ------------------- ^__^ (oo)_______ (__) )/ ||----w | || || @OrestesCA @phpvigo