Galera cluster deployment based on docker swarm using Linux Containers (LXC) with automatic deployment via Ansible.
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- name: Create debian containers for swarm
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lxc_container:
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name: "{{ item }}"
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container_log: true
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template: debian
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state: stopped
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fs_size: 2G
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template_options: --release stretch -a amd64
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container_command: |
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if [ ! -d ~/.ssh ]; then
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mkdir /root/.ssh
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echo "{{ lookup('file', my_ssh_key) }}" | tee -a /root/.ssh/authorized_keys
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systemctl restart sshd
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fi
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with_items:
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- "worker1"
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- "worker2"
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tags: lxc
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- name: Start lxc containers
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shell: lxc-start --name {{ item }}
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with_items:
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- "worker1"
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- "worker2"
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tags: lxc
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- name: Remove old container identification keys
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shell: ssh-keygen -f /root/.ssh/known_hosts -R {{ item }}
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with_items:
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- "10.0.3.100"
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- "10.0.3.101"
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when: inventory_hostname in groups['manager']
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- name: Ensure container key is up-to-date locally
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shell: ssh-keyscan {{ item }} >> /root/.ssh/known_hosts
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with_items:
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- "10.0.3.100"
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- "10.0.3.101"
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when: inventory_hostname in groups['manager']
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- name: Install python on LXC container
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raw: which python || (apt-get -y update && apt-get install -y python)
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when: inventory_hostname in groups['workers']
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