Automatic deployment on merge to main and manuall trigger: https://starknet-explorer.lambdaclass.com/

.github/workflows/deploy-testing.yaml

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+name: Deploy to testing
+on:
+  push:
+    branches:
+      - main
+  workflow_dispatch:
+
+jobs:
+
+  build-deploy:
+    name: Build and deploy to testing
+    runs-on: ubuntu-latest
+    environment:
+      name: testing
+      url: https://starknet-explorer.lambdaclass.com/
+    steps:
+
+    - name: Checkout
+      uses: actions/[email protected]
+
+    - name: Create ssh private key file from env var
+      env:
+        SSH_KEY: ${{ secrets.SSH_KEY }}
+      run: |
+        set -ex
+        sed -E 's/(-+(BEGIN|END) OPENSSH PRIVATE KEY-+) *| +/\1\n/g' <<< "$SSH_KEY" > id_ed25519_testing
+        chmod 400 id_ed25519_testing
+
+    - name: Install ansible
+      run: |
+        pip install ansible
+
+    - name: "Deploy with ansible"
+      env:
+        MIX_ENV: ${{ vars.MIX_ENV }}
+        DATABASE_URL: ${{ secrets.DATABASE_URL }}
+        SECRET_KEY_BASE: ${{ secrets.SECRET_KEY_BASE }}
+        PHX_HOST: ${{ vars.PHX_HOST }}
+        PHX_SERVER: ${{ vars.PHX_SERVER }}
+        RPC_API_HOST: ${{ secrets.RPC_API_HOST }}
+        ANSIBLE_SSH_PKEY_DIR: "./id_ed25519_testing"
+        GIT_BRANCH: ${{ github.head_ref || github.ref_name }}
+      run: |
+        ansible-playbook -i ansible/inventory.yaml ansible/playbooks/deployment.yaml

ansible/inventory.yaml

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+webservers:
+  hosts:
+    starknet_testing:
+      ansible_host: "157.90.154.208"
+      ansible_user: starknet_explorer
+      ansible_python_interpreter: /usr/bin/python3
+      ansible_ssh_private_key_file: "{{ lookup('ansible.builtin.env', 'ANSIBLE_SSH_PKEY_DIR') }}"
+      ansible_ssh_extra_args: '-o StrictHostKeyChecking=no'

ansible/playbooks/deployment.yaml

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+- name: Deploy new version
+  hosts: webservers
+  serial: 1
+  gather_facts: false
+  any_errors_fatal: true
+  become: true
+  become_user: starknet_explorer
+
+  pre_tasks:
+
+  - name: Delete tmp repo
+    file:
+      state: absent
+      path: /home/starknet_explorer/tmp/starknet_explorer
+
+  - name: Clone repo in tmp dir
+    ansible.builtin.git:
+      repo: [email protected]:lambdaclass/starknet_explorer.git
+      version: "{{ lookup('ansible.builtin.env', 'GIT_BRANCH') }}"
+      dest: /home/starknet_explorer/tmp/starknet_explorer
+      ssh_opts: "-o StrictHostKeyChecking=no"
+      key_file: /home/starknet_explorer/.ssh/id_ed25519
+    register: clone_output
+
+  - name: Print clone repo output
+    debug: msg="{{ clone_output }}"
+
+  - name: Build
+    ansible.builtin.shell: |
+      set -ex
+      mix local.hex --force
+      mix local.rebar --force
+      mix deps.get --only $MIX_ENV
+      mix deps.compile
+      mix assets.deploy
+      mix phx.digest
+      mix compile
+      mix release
+      mix phx.gen.release
+    environment:
+      MIX_ENV: prod
+    args:
+      chdir: /home/starknet_explorer/tmp/starknet_explorer
+    register: build_output
+
+  - debug: msg="{{ build_output.stdout_lines + [ build_output.stderr_lines ] }}"
+
+  - name: Delete old repo
+    ansible.builtin.file:
+      state: absent
+      path: /home/starknet_explorer/starknet_explorer
+
+  - name: Copy repo from tmp dir
+    ansible.builtin.copy:
+      remote_src: true
+      src: /home/starknet_explorer/tmp/starknet_explorer
+      dest: /home/starknet_explorer/
+
+  - name: Create .env file
+    ansible.builtin.template:
+      src: .env.j2
+      dest: /home/starknet_explorer/.env
+    vars:
+      phx_host: "{{ lookup('ansible.builtin.env', 'PHX_HOST') }}"
+      secret_key_base: "{{ lookup('ansible.builtin.env', 'SECRET_KEY_BASE') }}"
+      database_url: "{{ lookup('ansible.builtin.env', 'DATABASE_URL') }}"
+      rpc_api_host: "{{ lookup('ansible.builtin.env', 'RPC_API_HOST') }}"
+
+  - name: Create user systemd directory
+    ansible.builtin.file:
+      state: directory
+      path: /home/starknet_explorer/.config/systemd/user
+
+  - name: Install systemd service
+    ansible.builtin.template:
+      src: starknet_explorer.service.j2
+      dest: /home/starknet_explorer/.config/systemd/user/starknet_explorer.service
+
+  - name: Restart starknet_explorer service
+    ansible.builtin.systemd:
+      scope: user
+      state: restarted
+      daemon_reload: true
+      enabled: true
+      name: starknet_explorer

ansible/playbooks/templates/.env.j2

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+PHX_HOST={{ phx_host }}
+PHX_SERVER=true
+SECRET_KEY_BASE={{ secret_key_base }}
+DATABASE_URL={{ database_url }}
+RPC_API_HOST={{ rpc_api_host }}

ansible/playbooks/templates/starknet_explorer.service.j2

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+[Unit]
+Description=Starknet Explorer
+
+[Service]
+WorkingDirectory=/home/starknet_explorer/starknet_explorer
+Restart=on-failure
+ExecStart=/home/starknet_explorer/starknet_explorer/entrypoint.sh
+ExecReload=/bin/kill -HUP
+KillSignal=SIGTERM
+EnvironmentFile=/home/starknet_explorer/.env
+StandardOutput=append:/home/starknet_explorer/logs/starknet_explorer.log
+StandardError=append:/home/starknet_explorer/logs/starknet_explorer.log
+
+[Install]
+WantedBy=multi-user.target

entrypoint.sh

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+#!/usr/bin/env bash
+
+/home/starknet_explorer/starknet_explorer/_build/prod/rel/starknet_explorer/bin/starknet_explorer start