fix: improve script + add ansible variant (draft)

config.yml

@@ -0,0 +1,10 @@
+source:
+  host: source.example.com
+  user: source_user
+  port: 22
+
+destination:
+  host: destination.example.com
+  user: destination_user
+  port: 22
+

dokku-sync.sh

@@ -4,51 +4,99 @@
 set -e
 set -u
 
-LOCAL="danaos.infra.glenux.net"
+# Generate SSH keypair on control machine (in temporary directory)
-REMOTE="dinlas.infra.glenux.net"
+TEMP_DIR=$(mktemp -d)
-SSH_REMOTE="root@$REMOTE"
+MIGRATION_SSH_KEY="$TEMP_DIR/dokku-sync-migration_ed25519"
-SSH_KEY="$HOME/.ssh/dinlas-to-danaos_rsync2022_ed25519"
+SSH_KEY="/path/to/control/key"
+ssh-keygen -t ed25519 -f "$SSH_KEY" -N ""
 
-sshrun() {
+usage() {
-        ssh -i "$SSH_KEY" root@dinlas.infra.glenux.net "$*"
+  echo "Usage: $0 --src USER@HOSTNAME --dest USER@HOSTNAME --privkey PATH_TO_PRIVATE_KEY"
+  echo
+  echo "Options:"
+  echo "  --src      Source SSH address in the format USER@HOSTNAME"
+  echo "  --dest     Destination SSH address in the format USER@HOSTNAME"
+  echo "  --privkey  Path to the private SSH key"
+  echo "  -h, --help Show this help message"
 }
 
-# mkdir -p /srv/backup
+dest_run() {
-# APPS=$ (sshrun "dokku ls" |awk '/^[^--]/ { print $1; }')
+        ssh -i "$SSH_KEY" "$SOURCE_SSH_ADDR" "$*"
+}
+
+source_run() {
+        ssh -i "$SSH_KEY" "$SOURCE_SSH_ADDR" "$*"
+}
+
+## ENTRYPOINT
+
+# Loop and parse command line arguments
+while [ "$#" -gt 0 ]; do
+  case "$1" in
+    --src)
+      SRC_SSH_ADDR="$2"
+      shift 2
+      ;;
+    --dest)
+      DEST_SSH_ADDR="$2"
+      shift 2
+      ;;
+    --privkey)
+      SSH_KEY="$2"
+      shift 2
+      ;;
+    -h|--help)
+      usage
+      exit 0
+      ;;
+    *)
+      echo "Unknown option: $1"
+      usage
+      exit 1
+      ;;
+  esac
+done
+
+# Split values for SRC and DEST
+DEST_HOST=$(echo "$DEST_SSH_ADDR" | cut -d'@' -f2)
+DEST_USER=$(echo "$DEST_SSH_ADDR" | cut -d'@' -f1)
+SOURCE_HOST=$(echo "$SRC_SSH_ADDR" | cut -d'@' -f2)
+SOURCE_USER=$(echo "$SRC_SSH_ADDR" | cut -d'@' -f1)
 
 # Stop all remote services
-sshrun "dokku ps:stop --all"
+source_run "dokku ps:stop --all"
 
-sshrun "dokku mariadb:list |tail -n+2 |xargs -iSERVICE -- dokku mariadb:stop SERVICE"
+source_run "dokku mariadb:list |tail -n+2 |xargs -iSERVICE -- dokku mariadb:stop SERVICE"
-sshrun "dokku postgres:list |tail -n+2 |xargs -iSERVICE -- dokku postgres:stop SERVICE"
+source_run "dokku postgres:list |tail -n+2 |xargs -iSERVICE -- dokku postgres:stop SERVICE"
-sshrun "dokku redis:list |tail -n+2 |xargs -iSERVICE -- dokku redis:stop SERVICE"
+source_run "dokku redis:list |tail -n+2 |xargs -iSERVICE -- dokku redis:stop SERVICE"
-sshrun "dokku mongo:list |tail -n+2 |xargs -iSERVICE -- dokku mongo:stop SERVICE"
+source_run "dokku mongo:list |tail -n+2 |xargs -iSERVICE -- dokku mongo:stop SERVICE"
 
-sshrun "systemctl stop docker"
+source_run "systemctl stop docker"
-sshrun "systemctl stop docker.socket"
+source_run "systemctl stop docker.socket"
 
 
 # Stop all local services
-dokku ps:stop --all
+dest_run "dokku ps:stop --all"
-systemctl stop docker
+dest_run "systemctl stop docker"
-systemctl stop docker.socket
+dest_run "systemctl stop docker.socket"
+
+# Prepare directories
+dest_run "mkdir -p /home/dokku/"
+dest_run "mkdir -p /home/data/"
+dest_run "mkdir -p /var/lib/dokku/"
 
 # Copy all data
-mkdir -p /home/dokku/
+rsync -avz --delete "$SOURCE_SSH_ADDR:/home/dokku/" "$DEST_SSH_ADDR:/home/dokku/"
-mkdir -p /home/data/
+rsync -avz --delete "$SOURCE_SSH_ADDR:/var/lib/dokku/" "$DEST_SSH_ADDR:/var/lib/dokku/"
-mkdir -p /var/lib/dokku/
+rsync -avz --delete "$SOURCE_SSH_ADDR:/home/data/" "$DEST_SSH_ADDR:/home/data/"
+rsync -avz --delete "$SOURCE_SSH_ADDR:/home/git/" "$DEST_SSH_ADDR:/home/git/"
 
-rsync -avz --delete "$SSH_REMOTE:/home/dokku/" /home/dokku/
+# FIXME: check if rsync succeeded
-rsync -avz --delete "$SSH_REMOTE:/var/lib/dokku/" /var/lib/dokku/
-rsync -avz --delete "$SSH_REMOTE:/home/data/" /home/data/
-rsync -avz --delete "$SSH_REMOTE:/home/git/" /home/git/
 
 # Start all local services
-dokku apps:list
+dest_run "dokku apps:list"
 
 # Patch URLs from imported domains
-find /home/dokku/ -name VHOST -or -name URLS \
+dest_run "find /home/dokku/ -name VHOST -or -name URLS -print0 | xargs -0 -iFILE -- sed -i \"s/$SOURCE_HOST/$DEST_HOST/g\" FILE"
-  | xargs -iFILE -- \
-      sed -i "s/$REMOTE/$LOCAL/g" FILE
 
 echo "SUCCESS"

playbook.yml

@@ -0,0 +1,134 @@
+---
+- name: Dokku migration playbook
+  hosts: localhost
+  gather_facts: 'no'
+  vars_files:
+    - config.yml
+
+  tasks:
+    - name: Create temporary directory for SSH keypair
+      tempfile:
+        state: directory
+        suffix: dokku_sync
+      register: temp_dir
+
+    - name: Generate SSH keypair
+      community.crypto.openssh_keypair:
+        path: "{{ temp_dir.path }}/dokku_sync_migration"
+        type: ed25519
+        owner: "{{ lookup('env', 'USER') }}"
+        group: "{{ lookup('env', 'USER') }}"
+        mode: '0600'
+
+- name: Handle Source Server
+  hosts: source
+  gather_facts: 'yes'
+  vars_files:
+    - config.yml
+  tasks:
+    - name: Stop all Dokku apps
+      command: dokku ps:stop --all
+
+    - name: Stop all MariaDB services
+      shell: dokku mariadb:list | tail -n+2 | xargs -iSERVICE dokku mariadb:stop SERVICE
+
+    - name: Stop all PostgreSQL services
+      shell: dokku postgres:list | tail -n+2 | xargs -iSERVICE dokku postgres:stop SERVICE
+
+    - name: Stop all Redis services
+      shell: dokku redis:list | tail -n+2 | xargs -iSERVICE dokku redis:stop SERVICE
+
+    - name: Stop all MongoDB services
+      shell: dokku mongo:list | tail -n+2 | xargs -iSERVICE dokku mongo:stop SERVICE
+
+    - name: Stop Docker service
+      service:
+        name: docker
+        state: stopped
+
+    - name: Stop Docker socket service
+      service:
+        name: docker.socket
+        state: stopped
+
+- name: Handle Destination Server
+  hosts: destination
+  gather_facts: yes
+  vars_files:
+    - config.yml
+  tasks:
+    - name: Stop all Dokku apps
+      command: dokku ps:stop --all
+
+    - name: Stop Docker service
+      service:
+        name: docker
+        state: stopped
+
+    - name: Stop Docker socket service
+      service:
+        name: docker.socket
+        state: stopped
+
+    - name: Create necessary directories
+      file:
+        path: "{{ item }}"
+        state: directory
+        owner: dokku
+        group: dokku
+        mode: '0755'
+      loop:
+        - /home/dokku/
+        - /home/data/
+        - /var/lib/dokku/
+
+    - name: Synchronize /home/dokku
+      synchronize:
+        src: "{{ source_host }}:/home/dokku/"
+        dest: /home/dokku/
+        archive: 'yes'
+        delete: 'yes'
+
+    - name: Synchronize /var/lib/dokku
+      synchronize:
+        src: "{{ source_host }}:/var/lib/dokku/"
+        dest: /var/lib/dokku/
+        archive: 'yes'
+        delete: 'yes'
+
+    - name: Synchronize /home/data
+      synchronize:
+        src: "{{ source_host }}:/home/data/"
+        dest: /home/data/
+        archive: 'yes'
+        delete: 'yes'
+
+    - name: Synchronize /home/git
+      synchronize:
+        src: "{{ source_host }}:/home/git/"
+        dest: /home/git/
+        archive: 'yes'
+        delete: 'yes'
+
+    - name: List Dokku apps
+      command: dokku apps:list
+
+    - name: Patch URLs in Dokku configuration files
+      find:
+        paths:
+          - /home/dokku/
+        patterns: ['VHOST', 'URLS']
+        recurse: 'yes'
+      register: dokku_config_files
+
+    - name: Replace source host with destination host in configuration files
+      lineinfile:
+        path: "{{ item.path }}"
+        regexp: "{{ source_host }}"
+        line: "{{ destination_host }}"
+      loop: "{{ dokku_config_files.files }}"
+
+    - name: Display success message
+      debug:
+        msg: "SUCCESS"
+

playbook2.yml

@@ -0,0 +1,194 @@
+---
+- name: Dokku migration playbook
+  hosts: localhost
+  gather_facts: no
+  vars_files:
+    - config.yml
+
+  tasks:
+    - name: Create temporary directory for SSH keypair
+      tempfile:
+        state: directory
+        suffix: dokku_sync
+      register: temp_dir
+
+    - name: Generate SSH keypair
+      community.crypto.openssh_keypair:
+        path: "{{ temp_dir.path }}/dokku_sync_migration"
+        type: ed25519
+        owner: "{{ lookup('env', 'USER') }}"
+        group: "{{ lookup('env', 'USER') }}"
+        mode: '0600'
+
+- name: Handle Source Server
+  hosts: source
+  gather_facts: yes
+  vars_files:
+    - config.yml
+  tasks:
+    - name: Get list of Dokku MariaDB services
+      shell: dokku mariadb:list | tail -n+2
+      register: mariadb_services
+
+    - name: Get list of Dokku PostgreSQL services
+      shell: dokku postgres:list | tail -n+2
+      register: postgres_services
+
+    - name: Get list of Dokku Redis services
+      shell: dokku redis:list | tail -n+2
+      register: redis_services
+
+    - name: Get list of Dokku MongoDB services
+      shell: dokku mongo:list | tail -n+2
+      register: mongo_services
+
+    - name: Save Dokku service lists to disk
+      copy:
+        content: |
+          mariadb_services: {{ mariadb_services.stdout_lines }}
+          postgres_services: {{ postgres_services.stdout_lines }}
+          redis_services: {{ redis_services.stdout_lines }}
+          mongo_services: {{ mongo_services.stdout_lines }}
+        dest: /tmp/dokku_services.yml
+
+    - name: Stop all Dokku apps
+      command: dokku ps:stop --all
+
+    - name: Stop all MariaDB services
+      command: dokku mariadb:stop {{ item }}
+      loop: "{{ mariadb_services.stdout_lines }}"
+
+    - name: Stop all PostgreSQL services
+      command: dokku postgres:stop {{ item }}
+      loop: "{{ postgres_services.stdout_lines }}"
+
+    - name: Stop all Redis services
+      command: dokku redis:stop {{ item }}
+      loop: "{{ redis_services.stdout_lines }}"
+
+    - name: Stop all MongoDB services
+      command: dokku mongo:stop {{ item }}
+      loop: "{{ mongo_services.stdout_lines }}"
+
+    - name: Stop Docker service
+      service:
+        name: docker
+        state: stopped
+
+    - name: Stop Docker socket service
+      service:
+        name: docker.socket
+        state: stopped
+
+    - name: Fetch Dokku service lists to local
+      fetch:
+        src: /tmp/dokku_services.yml
+        dest: /tmp/dokku_services.yml
+        flat: yes
+
+- name: Handle Destination Server
+  hosts: destination
+  gather_facts: yes
+  vars_files:
+    - config.yml
+  tasks:
+    - name: Copy Dokku service lists to destination
+      copy:
+        src: /tmp/dokku_services.yml
+        dest: /tmp/dokku_services.yml
+
+    - name: Load Dokku service lists
+      include_vars:
+        file: /tmp/dokku_services.yml
+
+    - name: Stop all Dokku apps
+      command: dokku ps:stop --all
+
+    - name: Stop Docker service
+      service:
+        name: docker
+        state: stopped
+
+    - name: Stop Docker socket service
+      service:
+        name: docker.socket
+        state: stopped
+
+    - name: Create necessary directories
+      file:
+        path: "{{ item }}"
+        state: directory
+        owner: dokku
+        group: dokku
+        mode: '0755'
+      loop:
+        - /home/dokku/
+        - /home/data/
+        - /var/lib/dokku/
+
+    - name: Synchronize /home/dokku
+      synchronize:
+        src: "{{ source_host }}:/home/dokku/"
+        dest: /home/dokku/
+        archive: yes
+        delete: yes
+
+    - name: Synchronize /var/lib/dokku
+      synchronize:
+        src: "{{ source_host }}:/var/lib/dokku/"
+        dest: /var/lib/dokku/
+        archive: yes
+        delete: yes
+
+    - name: Synchronize /home/data
+      synchronize:
+        src: "{{ source_host }}:/home/data/"
+        dest: /home/data/
+        archive: yes
+        delete: yes
+
+    - name: Synchronize /home/git
+      synchronize:
+        src: "{{ source_host }}:/home/git/"
+        dest: /home/git/
+        archive: yes
+        delete: yes
+
+    - name: Start all MariaDB services
+      command: dokku mariadb:start {{ item }}
+      loop: "{{ mariadb_services }}"
+
+    - name: Start all PostgreSQL services
+      command: dokku postgres:start {{ item }}
+      loop: "{{ postgres_services }}"
+
+    - name: Start all Redis services
+      command: dokku redis:start {{ item }}
+      loop: "{{ redis_services }}"
+
+    - name: Start all MongoDB services
+      command: dokku mongo:start {{ item }}
+      loop: "{{ mongo_services }}"
+
+    - name: List Dokku apps
+      command: dokku apps:list
+
+    - name: Patch URLs in Dokku configuration files
+      find:
+        paths:
+          - /home/dokku/
+        patterns: ['VHOST', 'URLS']
+        recurse: yes
+      register: dokku_config_files
+
+    - name: Replace source host with destination host in configuration files
+      lineinfile:
+        path: "{{ item.path }}"
+        regexp: "{{ source_host }}"
+        line: "{{ destination_host }}"
+      loop: "{{ dokku_config_files.files }}"
+
+    - name: Display success message
+      debug:
+        msg: "SUCCESS"
+