c2d7fd775f
When stopping or starting Traefik, don't hide important errors. Docker doesn't return an error when starting a started container or stopping a stopped container. When rebooting we want to know about errors during run as we've just stopped and removed the previous container. When booting, we want to leave the running container if it exists, restart a stopped container and run a new one if none exists. We can implement this with `docker start ... || docker run ...`: - if the container is started, `docker start` will exit with 0 - if the container is stopped, `docker start` will start it and exit with 0 - if the container doesn't exist, `docker start` will return a non zero exit code and `docker run` will create a new container. Any errors in `docker run` will be returned.
105 lines
2.3 KiB
Ruby
105 lines
2.3 KiB
Ruby
class Mrsk::Commands::Traefik < Mrsk::Commands::Base
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delegate :argumentize, :argumentize_env_with_secrets, :optionize, to: Mrsk::Utils
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DEFAULT_IMAGE = "traefik:v2.9"
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CONTAINER_PORT = 80
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DEFAULT_ARGS = {
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'log.level' => 'DEBUG'
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}
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def run
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docker :run, "--name traefik",
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"--detach",
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"--restart", "unless-stopped",
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"--publish", port,
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"--volume", "/var/run/docker.sock:/var/run/docker.sock",
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*env_args,
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*config.logging_args,
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*label_args,
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*docker_options_args,
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image,
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"--providers.docker",
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*cmd_option_args
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end
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def start
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docker :container, :start, "traefik"
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end
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def stop
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docker :container, :stop, "traefik"
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end
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def start_or_run
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combine start, run, by: "||"
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end
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def info
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docker :ps, "--filter", "name=^traefik$"
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end
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def logs(since: nil, lines: nil, grep: nil)
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pipe \
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docker(:logs, "traefik", (" --since #{since}" if since), (" --tail #{lines}" if lines), "--timestamps", "2>&1"),
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("grep '#{grep}'" if grep)
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end
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def follow_logs(host:, grep: nil)
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run_over_ssh pipe(
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docker(:logs, "traefik", "--timestamps", "--tail", "10", "--follow", "2>&1"),
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(%(grep "#{grep}") if grep)
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).join(" "), host: host
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end
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def remove_container
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docker :container, :prune, "--force", "--filter", "label=org.opencontainers.image.title=Traefik"
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end
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def remove_image
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docker :image, :prune, "--all", "--force", "--filter", "label=org.opencontainers.image.title=Traefik"
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end
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def port
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"#{host_port}:#{CONTAINER_PORT}"
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end
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private
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def label_args
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argumentize "--label", labels
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end
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def env_args
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env_config = config.traefik["env"] || {}
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if env_config.present?
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argumentize_env_with_secrets(env_config)
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else
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[]
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end
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end
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def labels
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config.traefik["labels"] || []
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end
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def image
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config.traefik.fetch("image") { DEFAULT_IMAGE }
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end
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def docker_options_args
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optionize(config.traefik["options"] || {})
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end
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def cmd_option_args
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if args = config.traefik["args"]
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optionize DEFAULT_ARGS.merge(args), with: "="
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else
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optionize DEFAULT_ARGS, with: "="
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end
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end
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def host_port
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config.traefik["host_port"] || CONTAINER_PORT
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end
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end
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