Files
kamal/lib/mrsk/commands/healthcheck.rb
David Heinemeier Hansson 1ccf679ca9 Switch to ruby-based retry
Retry connection errors with backoff
2023-02-20 17:42:55 +01:00

51 lines
1.1 KiB
Ruby

class Mrsk::Commands::Healthcheck < Mrsk::Commands::Base
EXPOSED_PORT = 3999
def run
web = config.role(:web)
docker :run,
"--detach",
"--name", container_name_with_version,
"--publish", "#{EXPOSED_PORT}:#{config.healthcheck["port"]}",
"--label", "service=#{container_name}",
*web.env_args,
*config.volume_args,
config.absolute_image,
web.cmd
end
def curl
[ :curl, "--silent", "--output", "/dev/null", "--write-out", "'%{http_code}'", "--max-time", "2", health_url ]
end
def logs
pipe container_id, xargs(docker(:logs, "--tail", 50, "2>&1"))
end
def stop
pipe container_id, xargs(docker(:stop))
end
def remove
pipe container_id, xargs(docker(:container, :rm))
end
private
def container_name
"healthcheck-#{config.service}"
end
def container_name_with_version
"healthcheck-#{config.service_with_version}"
end
def container_id
container_id_for(container_name: container_name)
end
def health_url
"http://localhost:#{EXPOSED_PORT}#{config.healthcheck["path"]}"
end
end