Files
kamal/lib/kamal/commands/app.rb
Donal McBreen fd0cdc1ca1 All role specific proxy configuration
By default only the primary role runs the proxy. To disable the proxy
for that role, you can set `proxy: false` under it.

For other roles they default to not running the proxy, but you can
enable it by setting `proxy: true` for the role, or alternatively
setting a proxy configuration.

The proxy configuration will be merged into the root proxy configuration.
2024-09-18 17:25:35 +01:00

116 lines
3.1 KiB
Ruby

class Kamal::Commands::App < Kamal::Commands::Base
include Assets, Containers, Execution, Images, Logging, Proxy
ACTIVE_DOCKER_STATUSES = [ :running, :restarting ]
attr_reader :role, :host
delegate :container_name, to: :role
def initialize(config, role: nil, host: nil)
super(config)
@role = role
@host = host
end
def run(hostname: nil)
docker :run,
"--detach",
"--restart unless-stopped",
"--name", container_name,
"--network", "kamal",
*([ "--hostname", hostname ] if hostname),
"-e", "KAMAL_CONTAINER_NAME=\"#{container_name}\"",
"-e", "KAMAL_VERSION=\"#{config.version}\"",
*role.env_args(host),
*role.logging_args,
*config.volume_args,
*role.asset_volume_args,
*role.label_args,
*role.option_args,
config.absolute_image,
role.cmd
end
def start
docker :start, container_name
end
def status(version:)
pipe container_id_for_version(version), xargs(docker(:inspect, "--format", DOCKER_HEALTH_STATUS_FORMAT))
end
def stop(version: nil)
pipe \
version ? container_id_for_version(version) : current_running_container_id,
xargs(docker(:stop, *role.stop_args))
end
def info
docker :ps, *filter_args
end
def current_running_container_id
current_running_container(format: "--quiet")
end
def container_id_for_version(version, only_running: false)
container_id_for(container_name: container_name(version), only_running: only_running)
end
def current_running_version
pipe \
current_running_container(format: "--format '{{.Names}}'"),
extract_version_from_name
end
def list_versions(*docker_args, statuses: nil)
pipe \
docker(:ps, *filter_args(statuses: statuses), *docker_args, "--format", '"{{.Names}}"'),
extract_version_from_name
end
def ensure_env_directory
make_directory role.env_directory
end
private
def latest_image_id
docker :image, :ls, *argumentize("--filter", "reference=#{config.latest_image}"), "--format", "'{{.ID}}'"
end
def current_running_container(format:)
pipe \
shell(chain(latest_image_container(format: format), latest_container(format: format))),
[ :head, "-1" ]
end
def latest_image_container(format:)
latest_container format: format, filters: [ "ancestor=$(#{latest_image_id.join(" ")})" ]
end
def latest_container(format:, filters: nil)
docker :ps, "--latest", *format, *filter_args(statuses: ACTIVE_DOCKER_STATUSES), argumentize("--filter", filters)
end
def filter_args(statuses: nil)
argumentize "--filter", filters(statuses: statuses)
end
def extract_version_from_name
# Extract SHA from "service-role-dest-SHA"
%(while read line; do echo ${line##{role.container_prefix}-}; done)
end
def filters(statuses: nil)
[ "label=service=#{config.service}" ].tap do |filters|
filters << "label=destination=#{config.destination}" if config.destination
filters << "label=role=#{role}" if role
statuses&.each do |status|
filters << "status=#{status}"
end
end
end
end