Files
kamal/lib/kamal/commands/traefik.rb
Donal McBreen 7c7785c1eb Downgrade from Kamal 2 to 1.9
Add a downgrade command, so you can reverse the upgrade process and go
back to Kamal 1.9. This replaces kamal-proxy and reboots all the
accessories.

This gives an upgrade and downgrade path:

Upgrade:
1. Upgrade config to be Kamal 2 compatible + use kamal 2.0
2. Run `kamal upgrade`

Downgrade:
1. Switch back to previous config + use kamal 1.9
2. Run `kamal downgrade`

You can set `--rolling` to downgrade one host at a time.
2024-09-18 10:11:32 +01:00

95 lines
2.3 KiB
Ruby

class Kamal::Commands::Traefik < Kamal::Commands::Base
delegate :argumentize, :optionize, to: Kamal::Utils
delegate :port, :publish?, :labels, :env, :image, :options, :args, to: :"config.traefik"
def run
docker :run, "--name traefik",
"--detach",
"--restart", "unless-stopped",
*publish_args,
"--volume", "/var/run/docker.sock:/var/run/docker.sock",
*env_args,
*config.logging_args,
*label_args,
*docker_options_args,
image,
"--providers.docker",
*cmd_option_args
end
def start
docker :container, :start, "traefik"
end
def stop
docker :container, :stop, "traefik"
end
def start_or_run
any start, run
end
def info
docker :ps, "--filter", "name=^traefik$"
end
def logs(since: nil, lines: nil, grep: nil, grep_options: nil)
pipe \
docker(:logs, "traefik", (" --since #{since}" if since), (" --tail #{lines}" if lines), "--timestamps", "2>&1"),
("grep '#{grep}'#{" #{grep_options}" if grep_options}" if grep)
end
def follow_logs(host:, grep: nil, grep_options: nil)
run_over_ssh pipe(
docker(:logs, "traefik", "--timestamps", "--tail", "10", "--follow", "2>&1"),
(%(grep "#{grep}"#{" #{grep_options}" if grep_options}) if grep)
).join(" "), host: host
end
def remove_container
docker :container, :prune, "--force", "--filter", "label=org.opencontainers.image.title=Traefik"
end
def remove_image
docker :image, :prune, "--all", "--force", "--filter", "label=org.opencontainers.image.title=Traefik"
end
def make_env_directory
make_directory(env.secrets_directory)
end
def remove_env_file
[ :rm, "-f", env.secrets_file ]
end
def cleanup_kamal_proxy
chain \
docker(:container, :stop, "kamal-proxy"),
combine(
docker(:container, :prune, "--force", "--filter", "label=org.opencontainers.image.title=kamal-proxy"),
docker(:image, :prune, "--all", "--force", "--filter", "label=org.opencontainers.image.title=kamal-proxy")
)
end
private
def publish_args
argumentize "--publish", port if publish?
end
def label_args
argumentize "--label", labels
end
def env_args
env.args
end
def docker_options_args
optionize(options)
end
def cmd_option_args
optionize args, with: "="
end
end