Class: Kamal::Cli::App
Defined Under Namespace
Classes: Assets, Boot, ErrorPages, SslCertificates
Instance Method Summary collapse
- #boot ⇒ Object
- #containers ⇒ Object
- #details ⇒ Object
- #exec(*cmd) ⇒ Object
- #images ⇒ Object
- #live ⇒ Object
- #logs ⇒ Object
- #maintenance ⇒ Object
- #remove ⇒ Object
- #remove_app_directories ⇒ Object
- #remove_container(version) ⇒ Object
- #remove_containers ⇒ Object
- #remove_images ⇒ Object
- #stale_containers ⇒ Object
- #start ⇒ Object
- #stop ⇒ Object
- #version ⇒ Object
Methods inherited from Base
dynamic_command_class, exit_on_failure?, #initialize
Constructor Details
This class inherits a constructor from Kamal::Cli::Base
Instance Method Details
#boot ⇒ Object
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# File 'lib/kamal/cli/app.rb', line 3 def boot with_lock do say "Get most recent version available as an image...", :magenta unless [:version] using_version(version_or_latest) do |version| say "Start container with version #{version} (or reboot if already running)...", :magenta # Assets are prepared in a separate step to ensure they are on all hosts before booting on(KAMAL.app_hosts) do Kamal::Cli::App::ErrorPages.new(host, self).run KAMAL.roles_on(host).each do |role| Kamal::Cli::App::Assets.new(host, role, self).run Kamal::Cli::App::SslCertificates.new(host, role, self).run end end # Primary hosts and roles are returned first, so they can open the barrier = Kamal::Cli::Healthcheck::Barrier.new host_boot_groups.each do |hosts| host_list = Array(hosts).join(",") run_hook "pre-app-boot", hosts: host_list on(hosts) do |host| KAMAL.roles_on(host).each do |role| Kamal::Cli::App::Boot.new(host, role, self, version, ).run end end run_hook "post-app-boot", hosts: host_list sleep KAMAL.config.boot.wait if KAMAL.config.boot.wait end # Tag once the app booted on all hosts on(KAMAL.app_hosts) do |host| execute *KAMAL.auditor.record("Tagging #{KAMAL.config.absolute_image} as the latest image"), verbosity: :debug execute *KAMAL.app.tag_latest_image end end end end |
#containers ⇒ Object
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# File 'lib/kamal/cli/app.rb', line 175 def containers on(KAMAL.app_hosts) { |host| puts_by_host host, capture_with_info(*KAMAL.app.list_containers) } end |
#details ⇒ Object
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# File 'lib/kamal/cli/app.rb', line 94 def details on(KAMAL.app_hosts) do |host| roles = KAMAL.roles_on(host) roles.each do |role| puts_by_host host, capture_with_info(*KAMAL.app(role: role, host: host).info) end end end |
#exec(*cmd) ⇒ Object
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# File 'lib/kamal/cli/app.rb', line 109 def exec(*cmd) pre_connect_if_required if ( = [ :interactive, :reuse ].select { |key| [:detach] && [key] }.presence) raise ArgumentError, "Detach is not compatible with #{.join(" or ")}" end if cmd.empty? raise ArgumentError, "No command provided. You must specify a command to execute." end cmd = Kamal::Utils.join_commands(cmd) env = [:env] detach = [:detach] case when [:interactive] && [:reuse] say "Get current version of running container...", :magenta unless [:version] using_version([:version] || current_running_version) do |version| say "Launching interactive command with version #{version} via SSH from existing container on #{KAMAL.primary_host}...", :magenta run_locally { exec KAMAL.app(role: KAMAL.primary_role, host: KAMAL.primary_host).execute_in_existing_container_over_ssh(cmd, env: env) } end when [:interactive] say "Get most recent version available as an image...", :magenta unless [:version] using_version(version_or_latest) do |version| say "Launching interactive command with version #{version} via SSH from new container on #{KAMAL.primary_host}...", :magenta on(KAMAL.primary_host) { execute *KAMAL.registry.login } run_locally do exec KAMAL.app(role: KAMAL.primary_role, host: KAMAL.primary_host).execute_in_new_container_over_ssh(cmd, env: env) end end when [:reuse] say "Get current version of running container...", :magenta unless [:version] using_version([:version] || current_running_version) do |version| say "Launching command with version #{version} from existing container...", :magenta on(KAMAL.app_hosts) do |host| roles = KAMAL.roles_on(host) roles.each do |role| execute *KAMAL.auditor.record("Executed cmd '#{cmd}' on app version #{version}", role: role), verbosity: :debug puts_by_host host, capture_with_info(*KAMAL.app(role: role, host: host).execute_in_existing_container(cmd, env: env)) end end end else say "Get most recent version available as an image...", :magenta unless [:version] using_version(version_or_latest) do |version| say "Launching command with version #{version} from new container...", :magenta on(KAMAL.app_hosts) do |host| execute *KAMAL.registry.login roles = KAMAL.roles_on(host) roles.each do |role| execute *KAMAL.auditor.record("Executed cmd '#{cmd}' on app version #{version}"), verbosity: :debug puts_by_host host, capture_with_info(*KAMAL.app(role: role, host: host).execute_in_new_container(cmd, env: env, detach: detach)) end end end end end |
#images ⇒ Object
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# File 'lib/kamal/cli/app.rb', line 207 def images on(KAMAL.app_hosts) { |host| puts_by_host host, capture_with_info(*KAMAL.app.list_images) } end |
#live ⇒ Object
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# File 'lib/kamal/cli/app.rb', line 269 def live with_lock do on(KAMAL.proxy_hosts) do |host| roles = KAMAL.roles_on(host) roles.each do |role| execute *KAMAL.app(role: role, host: host).live if role.running_proxy? end end end end |
#logs ⇒ Object
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# File 'lib/kamal/cli/app.rb', line 219 def logs # FIXME: Catch when app containers aren't running grep = [:grep] = [:grep_options] since = [:since] container_id = [:container_id] = ![:skip_timestamps] if [:follow] lines = [:lines].presence || ((since || grep) ? nil : 10) # Default to 10 lines if since or grep isn't set run_locally do info "Following logs on #{KAMAL.primary_host}..." KAMAL.specific_roles ||= [ KAMAL.primary_role.name ] role = KAMAL.roles_on(KAMAL.primary_host).first app = KAMAL.app(role: role, host: host) info app.follow_logs(host: KAMAL.primary_host, container_id: container_id, timestamps: , lines: lines, grep: grep, grep_options: ) exec app.follow_logs(host: KAMAL.primary_host, container_id: container_id, timestamps: , lines: lines, grep: grep, grep_options: ) end else lines = [:lines].presence || ((since || grep) ? nil : 100) # Default to 100 lines if since or grep isn't set on(KAMAL.app_hosts) do |host| roles = KAMAL.roles_on(host) roles.each do |role| begin puts_by_host host, capture_with_info(*KAMAL.app(role: role, host: host).logs(container_id: container_id, timestamps: , since: since, lines: lines, grep: grep, grep_options: )) rescue SSHKit::Command::Failed puts_by_host host, "Nothing found" end end end end end |
#maintenance ⇒ Object
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# File 'lib/kamal/cli/app.rb', line 284 def maintenance = { drain_timeout: [:drain_timeout] || KAMAL.config.drain_timeout, message: [:message] } with_lock do on(KAMAL.proxy_hosts) do |host| roles = KAMAL.roles_on(host) roles.each do |role| execute *KAMAL.app(role: role, host: host).maintenance(**) if role.running_proxy? end end end end |
#remove ⇒ Object
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# File 'lib/kamal/cli/app.rb', line 259 def remove with_lock do stop remove_containers remove_images remove_app_directories end end |
#remove_app_directories ⇒ Object
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# File 'lib/kamal/cli/app.rb', line 337 def remove_app_directories with_lock do on(KAMAL.app_hosts) do |host| roles = KAMAL.roles_on(host) roles.each do |role| execute *KAMAL.auditor.record("Removed #{KAMAL.config.app_directory}", role: role), verbosity: :debug execute *KAMAL.server.remove_app_directory, raise_on_non_zero_exit: false end execute *KAMAL.auditor.record("Removed #{KAMAL.config.app_directory}"), verbosity: :debug execute *KAMAL.app.remove_proxy_app_directory, raise_on_non_zero_exit: false end end end |
#remove_container(version) ⇒ Object
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# File 'lib/kamal/cli/app.rb', line 299 def remove_container(version) with_lock do on(KAMAL.app_hosts) do |host| roles = KAMAL.roles_on(host) roles.each do |role| execute *KAMAL.auditor.record("Removed app container with version #{version}", role: role), verbosity: :debug execute *KAMAL.app(role: role, host: host).remove_container(version: version) end end end end |
#remove_containers ⇒ Object
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# File 'lib/kamal/cli/app.rb', line 313 def remove_containers with_lock do on(KAMAL.app_hosts) do |host| roles = KAMAL.roles_on(host) roles.each do |role| execute *KAMAL.auditor.record("Removed all app containers", role: role), verbosity: :debug execute *KAMAL.app(role: role, host: host).remove_containers end end end end |
#remove_images ⇒ Object
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# File 'lib/kamal/cli/app.rb', line 327 def remove_images with_lock do on(KAMAL.app_hosts) do execute *KAMAL.auditor.record("Removed all app images"), verbosity: :debug execute *KAMAL.app.remove_images end end end |
#stale_containers ⇒ Object
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# File 'lib/kamal/cli/app.rb', line 181 def stale_containers stop = [:stop] with_lock_if_stopping do on(KAMAL.app_hosts) do |host| roles = KAMAL.roles_on(host) roles.each do |role| app = KAMAL.app(role: role, host: host) versions = capture_with_info(*app.list_versions, raise_on_non_zero_exit: false).split("\n") versions -= [ capture_with_info(*app.current_running_version, raise_on_non_zero_exit: false).strip ] versions.each do |version| if stop puts_by_host host, "Stopping stale container for role #{role} with version #{version}" execute *app.stop(version: version), raise_on_non_zero_exit: false else puts_by_host host, "Detected stale container for role #{role} with version #{version} (use `kamal app stale_containers --stop` to stop)" end end end end end end |
#start ⇒ Object
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# File 'lib/kamal/cli/app.rb', line 46 def start with_lock do on(KAMAL.app_hosts) do |host| roles = KAMAL.roles_on(host) roles.each do |role| app = KAMAL.app(role: role, host: host) execute *KAMAL.auditor.record("Started app version #{KAMAL.config.version}"), verbosity: :debug execute *app.start, raise_on_non_zero_exit: false if role.running_proxy? version = capture_with_info(*app.current_running_version, raise_on_non_zero_exit: false).strip endpoint = capture_with_info(*app.container_id_for_version(version)).strip raise Kamal::Cli::BootError, "Failed to get endpoint for #{role} on #{host}, did the container boot?" if endpoint.empty? execute *app.deploy(target: endpoint) end end end end end |
#stop ⇒ Object
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# File 'lib/kamal/cli/app.rb', line 69 def stop with_lock do on(KAMAL.app_hosts) do |host| roles = KAMAL.roles_on(host) roles.each do |role| app = KAMAL.app(role: role, host: host) execute *KAMAL.auditor.record("Stopped app", role: role), verbosity: :debug if role.running_proxy? version = capture_with_info(*app.current_running_version, raise_on_non_zero_exit: false).strip endpoint = capture_with_info(*app.container_id_for_version(version)).strip if endpoint.present? execute *app.remove, raise_on_non_zero_exit: false end end execute *app.stop, raise_on_non_zero_exit: false end end end end |