Files
kamal/lib/mrsk/commands/app.rb
2023-02-22 19:04:23 +01:00

145 lines
3.3 KiB
Ruby

class Mrsk::Commands::App < Mrsk::Commands::Base
def run(role: :web)
role = config.role(role)
docker :run,
"--detach",
"--restart unless-stopped",
"--log-opt", "max-size=#{MAX_LOG_SIZE}",
"--name", service_with_version,
*role.env_args,
*config.volume_args,
*role.label_args,
config.absolute_image,
role.cmd
end
def start
docker :start, service_with_version
end
def stop(version: nil)
pipe \
version ? container_id_for_version(version) : current_container_id,
xargs(docker(:stop))
end
def info
docker :ps, *service_filter
end
def logs(since: nil, lines: nil, grep: nil)
pipe \
current_container_id,
"xargs docker logs#{" --since #{since}" if since}#{" --tail #{lines}" if lines} 2>&1",
("grep '#{grep}'" if grep)
end
def follow_logs(host:, grep: nil)
run_over_ssh \
pipe(
current_container_id,
"xargs docker logs --timestamps --tail 10 --follow 2>&1",
(%(grep "#{grep}") if grep)
),
host: host
end
def execute_in_existing_container(*command, interactive: false)
docker :exec,
("-it" if interactive),
config.service_with_version,
*command
end
def execute_in_new_container(*command, interactive: false)
docker :run,
("-it" if interactive),
"--rm",
*config.env_args,
*config.volume_args,
config.absolute_image,
*command
end
def execute_in_existing_container_over_ssh(*command, host:)
run_over_ssh execute_in_existing_container(*command, interactive: true), host: host
end
def execute_in_new_container_over_ssh(*command, host:)
run_over_ssh execute_in_new_container(*command, interactive: true), host: host
end
def current_container_id
docker :ps, "--quiet", *service_filter
end
def current_running_version
# FIXME: Find more graceful way to extract the version from "app-version" than using sed and tail!
pipe \
docker(:ps, "--filter", "label=service=#{config.service}", "--format", '"{{.Names}}"'),
%(sed 's/-/\\n/g'),
"tail -n 1"
end
def most_recent_version_from_available_images
pipe \
docker(:image, :ls, "--format", '"{{.Tag}}"', config.repository),
"head -n 1"
end
def all_versions_from_available_containers
pipe \
docker(:image, :ls, "--format", '"{{.Tag}}"', config.repository),
"head -n 1"
end
def list_containers
docker :container, :ls, "--all", *service_filter
end
def list_container_names
[ *list_containers, "--format", "'{{ .Names }}'" ]
end
def remove_container(version:)
pipe \
container_id_for(container_name: service_with_version(version)),
xargs(docker(:container, :rm))
end
def remove_containers
docker :container, :prune, "--force", *service_filter
end
def list_images
docker :image, :ls, config.repository
end
def remove_images
docker :image, :prune, "--all", "--force", *service_filter
end
private
def service_with_version(version = nil)
if version
"#{config.service}-#{version}"
else
config.service_with_version
end
end
def container_id_for_version(version)
container_id_for(container_name: service_with_version(version))
end
def service_filter
[ "--filter", "label=service=#{config.service}" ]
end
end