[小技巧] 自动更新和手动更新docker容器

Problem & Summary

自动

# auto
docker run -d \
    --name watchtower \
    -v /var/run/docker.sock:/var/run/docker.sock \
    containrrr/watchtower
    
# or
cat > docker-compose.yml <<EOF
version: '3'
services:
  watchtower:
    image: containrrr/watchtower
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
    restart: unless-stopped
    # -c: cleanup
    # run every day at 2am
    # Only checking containers using enable label
    command: ["--cleanup", "--label-enable", "--schedule", "0 0 2 * * *"]
    #command: ["--cleanup", "--label-enable"]
EOF

docker compose down; docker compose up -d; sleep 1s; docker compose logs -f

# 完成之后，再运行其他的 docker 容器时，添加
# --label 
#   com.centurylinklabs.watchtower.enable=true 
# 即可，添加了这个标签的容器会被 watchtower 监控并自动更新，docker-compose 格式如下：

version: '3'
services:
  myapp:
    image: your-image:latest
    labels:
      - com.centurylinklabs.watchtower.enable=true
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
    restart: always
    # 其他容器配置...



# 这个则会被永久忽略更新
#     labels:
#      - com.centurylinklabs.watchtower.enable=false

手动

docker pull docker-name
docker restart docker-name

# or

docker-compose  pull
docker compose down; docker compose up -d; sleep 1s; docker compose logs -f