Zero_Redis_Counter_App.yaml

# My Counter App version 1.0 with zero downtime redis backup
---
replicated_api_version: 1.3.0
name: My Counter App
version: "1.0"
release_notes: The initial release of my counter application.
properties:
  app_url: http://{{repl ConfigOption "hostname" }}
  logo_url: ""
  console_title: My Counter App Console
admin_commands:
- alias: backup-redis-to-rdb
  command:
  - redis-cli
  - bgsave
  run_type: exec
  component: DB
  image:
    image_name: redis
    version: latest
- alias: mv-backup-rdb-to-safe-place
  command:
  - mv
  - /data/dump.rdb #default path of redis backup that we want to move offsite
  - "{{repl ConfigOption \"backup_path\"}}/dump.rdb" #path set in config screen
  run_type: exec
  component: DB
  image:
    image_name: redis
    version: latest
backup:
  enabled: true
  pause_all: false
  script: |
    #!/bin/bash
    sudo replicated admin --no-tty backup-redis-to-rdb
    sudo replicated admin --no-tty mv-backup-rdb-to-safe-place
state:
  ready:
    command: http_status_code
    args:
    - http://{{repl ConfigOption "hostname"}}/assets/bootstrap.min.css
    - "200"
cmds:
- name: host_ip
  cmd: publicip
  args: []
monitors:
  memory:
  - LB,nginx
components:
- name: DB
  containers:
  - source: public
    image_name: redis
    version: latest
    cmd: "[\"redis-server\", \"--appendonly\", \"yes\"]"
    publish_events:
    - name: Container redis started
      trigger: container-start
      data: ""
      subscriptions:
      - component: App
        container: freighter/counter
        action: start
    config_files: []
    customer_files: []
    env_vars: []
    ports: []
    volumes:
    - host_path: /data
      container_path: /data:rw
      is_excluded_from_backup: true
    - host_path: "{{repl ConfigOption \"backup_path\"}}"
      container_path: "{{repl ConfigOption \"backup_path\"}}"
    support_files: []
- name: LB
  containers:
  - source: public
    image_name: nginx
    version: latest
    cmd: ""
    publish_events:
    - name: Container nginx started
      trigger: container-start
      data: ""
      subscriptions: []
    config_files:
    - filename: /etc/nginx/conf.d/default.conf
      contents: |
        server {
          listen              80;
          server_name         {{repl ConfigOption "hostname" }};
          keepalive_timeout   70;

          location / {
            proxy_set_header X-Real-IP  $remote_addr;
            proxy_set_header X-Forwarded-For $remote_addr;
            proxy_set_header Host $host;
            proxy_pass http://{{repl HostPrivateIpAddress "App" "freighter/counter" }}:{{repl ContainerExposedPort "App" "freighter/counter" "3000" }};
          }
        }
    env_vars: []
    ports:
    - private_port: "80"
      public_port: "80"
      port_type: tcp
      when: ""
    volumes: []
    support_files: []
- name: App
  containers:
  - source: public
    image_name: freighter/counter
    display_name: Freighter Counter
    version: "1.0"
    cmd: ""
    publish_events:
    - name: Container freighter/counter started
      trigger: container-start
      data: ""
      subscriptions:
      - component: LB
        container: nginx
        action: start
    config_files: []
    customer_files: []
    env_vars:
    - name: REDIS_HOST
      static_val: "{{repl HostPrivateIpAddress \"DB\" \"redis\" }}"
    - name: REDIS_PORT
      static_val: "{{repl ContainerExposedPort \"DB\" \"redis\" \"6379\" }}"
    ports: []
    volumes: []
    support_files: []
config:
- name: hostname
  title: Hostname
  description: Ensure this domain name is routable on your network.
  items:
  - name: hostname
    title: Hostname
    type: text
    recommended: false
    default: ""
    when: ""
    affix: ""
    required: true
    items: []
- name: backup
  title: Backups
  description: Backups are created in a directory on your host machine.  You
    can copy these to a safe place after a backup is made.
  items:
  - name: backup_path
    title: Backup Path
    required: true
    type: text
    default: /backup