Call app:boot to rollback
The code in Mrsk::Cli::Main#rollback was very similar to Mrsk::Cli::App#boot. Modify Mrsk::Cli::App#boot so it can handle rollbacks by: 1. Only renaming running containers 2. Trying first to start then run the new container
This commit is contained in:
Donal McBreen
@@ -2,37 +2,39 @@ class Mrsk::Cli::App < Mrsk::Cli::Base
|
||||
desc "boot", "Boot app on servers (or reboot app if already running)"
|
||||
def boot
|
||||
with_lock do
|
||||
say "Get most recent version available as an image...", :magenta unless options[:version]
|
||||
using_version(version_or_latest) do |version|
|
||||
say "Start container with version #{version} using a #{MRSK.config.readiness_delay}s readiness delay (or reboot if already running)...", :magenta
|
||||
hold_lock_on_error do
|
||||
say "Get most recent version available as an image...", :magenta unless options[:version]
|
||||
using_version(version_or_latest) do |version|
|
||||
say "Start container with version #{version} using a #{MRSK.config.readiness_delay}s readiness delay (or reboot if already running)...", :magenta
|
||||
|
||||
on(MRSK.hosts) do
|
||||
execute *MRSK.auditor.record("Tagging #{MRSK.config.absolute_image} as the latest image"), verbosity: :debug
|
||||
execute *MRSK.app.tag_current_as_latest
|
||||
end
|
||||
on(MRSK.hosts) do
|
||||
execute *MRSK.auditor.record("Tagging #{MRSK.config.absolute_image} as the latest image"), verbosity: :debug
|
||||
execute *MRSK.app.tag_current_as_latest
|
||||
end
|
||||
|
||||
on(MRSK.hosts, **MRSK.boot_strategy) do |host|
|
||||
roles = MRSK.roles_on(host)
|
||||
on(MRSK.hosts, **MRSK.boot_strategy) do |host|
|
||||
roles = MRSK.roles_on(host)
|
||||
|
||||
roles.each do |role|
|
||||
app = MRSK.app(role: role)
|
||||
auditor = MRSK.auditor(role: role)
|
||||
roles.each do |role|
|
||||
app = MRSK.app(role: role)
|
||||
auditor = MRSK.auditor(role: role)
|
||||
|
||||
execute *auditor.record("Booted app version #{version}"), verbosity: :debug
|
||||
if capture_with_info(*app.container_id_for_version(version, only_running: true), raise_on_non_zero_exit: false).present?
|
||||
tmp_version = "#{version}_replaced_#{SecureRandom.hex(8)}"
|
||||
info "Renaming container #{version} to #{tmp_version} as already deployed on #{host}"
|
||||
execute *auditor.record("Renaming container #{version} to #{tmp_version}"), verbosity: :debug
|
||||
execute *app.rename_container(version: version, new_version: tmp_version)
|
||||
end
|
||||
|
||||
if capture_with_info(*app.container_id_for_version(version), raise_on_non_zero_exit: false).present?
|
||||
tmp_version = "#{version}_replaced_#{SecureRandom.hex(8)}"
|
||||
info "Renaming container #{version} to #{tmp_version} as already deployed on #{host}"
|
||||
execute *auditor.record("Renaming container #{version} to #{tmp_version}"), verbosity: :debug
|
||||
execute *app.rename_container(version: version, new_version: tmp_version)
|
||||
execute *auditor.record("Booted app version #{version}"), verbosity: :debug
|
||||
|
||||
old_version = capture_with_info(*app.current_running_version, raise_on_non_zero_exit: false).strip
|
||||
execute *app.start_or_run
|
||||
|
||||
Mrsk::Utils::HealthcheckPoller.wait_for_healthy(pause_after_ready: true) { capture_with_info(*app.status(version: version)) }
|
||||
|
||||
execute *app.stop(version: old_version), raise_on_non_zero_exit: false if old_version.present?
|
||||
end
|
||||
|
||||
old_version = capture_with_info(*app.current_running_version, raise_on_non_zero_exit: false).strip
|
||||
execute *app.run
|
||||
|
||||
Mrsk::Utils::HealthcheckPoller.wait_for_healthy(pause_after_ready: true) { capture_with_info(*app.status(version: version)) }
|
||||
|
||||
execute *app.stop(version: old_version), raise_on_non_zero_exit: false if old_version.present?
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
@@ -37,9 +37,7 @@ class Mrsk::Cli::Main < Mrsk::Cli::Base
|
||||
say "Detect stale containers...", :magenta
|
||||
invoke "mrsk:cli:app:stale_containers", [], invoke_options
|
||||
|
||||
hold_lock_on_error do
|
||||
invoke "mrsk:cli:app:boot", [], invoke_options
|
||||
end
|
||||
invoke "mrsk:cli:app:boot", [], invoke_options
|
||||
|
||||
say "Prune old containers and images...", :magenta
|
||||
invoke "mrsk:cli:prune:all", [], invoke_options
|
||||
@@ -70,9 +68,7 @@ class Mrsk::Cli::Main < Mrsk::Cli::Base
|
||||
say "Detect stale containers...", :magenta
|
||||
invoke "mrsk:cli:app:stale_containers", [], invoke_options
|
||||
|
||||
hold_lock_on_error do
|
||||
invoke "mrsk:cli:app:boot", [], invoke_options
|
||||
end
|
||||
invoke "mrsk:cli:app:boot", [], invoke_options
|
||||
end
|
||||
end
|
||||
|
||||
@@ -84,39 +80,15 @@ class Mrsk::Cli::Main < Mrsk::Cli::Base
|
||||
with_lock do
|
||||
invoke_options = deploy_options
|
||||
|
||||
hold_lock_on_error do
|
||||
MRSK.config.version = version
|
||||
old_version = nil
|
||||
MRSK.config.version = version
|
||||
old_version = nil
|
||||
|
||||
if container_available?(version)
|
||||
say "Start version #{version}, then wait #{MRSK.config.readiness_delay}s for app to boot before stopping the old version...", :magenta
|
||||
if container_available?(version)
|
||||
invoke "mrsk:cli:app:boot", [], invoke_options.merge(version: version)
|
||||
|
||||
on(MRSK.hosts) do
|
||||
execute *MRSK.auditor.record("Tagging #{MRSK.config.absolute_image} as the latest image"), verbosity: :debug
|
||||
execute *MRSK.app.tag_current_as_latest
|
||||
end
|
||||
|
||||
on(MRSK.hosts) do |host|
|
||||
roles = MRSK.roles_on(host)
|
||||
|
||||
roles.each do |role|
|
||||
app = MRSK.app(role: role)
|
||||
old_version = capture_with_info(*app.current_running_version).strip.presence
|
||||
|
||||
execute *app.start
|
||||
|
||||
if old_version
|
||||
sleep MRSK.config.readiness_delay
|
||||
|
||||
execute *app.stop(version: old_version), raise_on_non_zero_exit: false
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
audit_broadcast "Rolled back #{service_version(Mrsk::Utils.abbreviate_version(old_version))} to #{service_version}" unless options[:skip_broadcast]
|
||||
else
|
||||
say "The app version '#{version}' is not available as a container (use 'mrsk app containers' for available versions)", :red
|
||||
end
|
||||
audit_broadcast "Rolled back #{service_version(Mrsk::Utils.abbreviate_version(old_version))} to #{service_version}" unless options[:skip_broadcast]
|
||||
else
|
||||
say "The app version '#{version}' is not available as a container (use 'mrsk app containers' for available versions)", :red
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
@@ -6,6 +6,10 @@ class Mrsk::Commands::App < Mrsk::Commands::Base
|
||||
@role = role
|
||||
end
|
||||
|
||||
def start_or_run
|
||||
combine start, run, by: "||"
|
||||
end
|
||||
|
||||
def run
|
||||
role = config.role(self.role)
|
||||
|
||||
@@ -91,8 +95,8 @@ class Mrsk::Commands::App < Mrsk::Commands::Base
|
||||
docker :ps, "--quiet", *filter_args(status: :running), "--latest"
|
||||
end
|
||||
|
||||
def container_id_for_version(version)
|
||||
container_id_for(container_name: container_name(version))
|
||||
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
|
||||
|
||||
@@ -18,8 +18,8 @@ module Mrsk::Commands
|
||||
end
|
||||
end
|
||||
|
||||
def container_id_for(container_name:)
|
||||
docker :container, :ls, "--all", "--filter", "name=^#{container_name}$", "--quiet"
|
||||
def container_id_for(container_name:, only_running: false)
|
||||
docker :container, :ls, *("--all" unless only_running), "--filter", "name=^#{container_name}$", "--quiet"
|
||||
end
|
||||
|
||||
private
|
||||
|
||||
Reference in New Issue
Block a user