212 lines
8.2 KiB
Ruby
212 lines
8.2 KiB
Ruby
class Mrsk::Cli::App < Mrsk::Cli::Base
|
|
desc "boot", "Boot app on servers (or reboot app if already running)"
|
|
def boot
|
|
say "Get most recent version available as an image...", :magenta unless options[:version]
|
|
using_version(options[:version] || most_recent_version_available) do |version|
|
|
say "Start container with version #{version} (or reboot if already running)...", :magenta
|
|
|
|
cli = self
|
|
|
|
MRSK.config.roles.each do |role|
|
|
on(role.hosts) do |host|
|
|
execute *MRSK.auditor.record("Booted app version #{version}"), verbosity: :debug
|
|
|
|
begin
|
|
old_version = capture_with_info(*MRSK.app.current_running_version).strip
|
|
execute *MRSK.app.run(role: role.name)
|
|
|
|
cli.say "Waiting #{MRSK.config.readiness_delay}s for app to boot...", :magenta
|
|
sleep MRSK.config.readiness_delay
|
|
|
|
execute *MRSK.app.stop(version: old_version), raise_on_non_zero_exit: false if old_version.present?
|
|
|
|
rescue SSHKit::Command::Failed => e
|
|
if e.message =~ /already in use/
|
|
error "Rebooting container with same version #{version} already deployed on #{host} (may cause gap in zero-downtime promise!)"
|
|
execute *MRSK.auditor.record("Rebooted app version #{version}"), verbosity: :debug
|
|
|
|
execute *MRSK.app.stop(version: version)
|
|
execute *MRSK.app.remove_container(version: version)
|
|
execute *MRSK.app.run(role: role.name)
|
|
else
|
|
raise
|
|
end
|
|
end
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
desc "start", "Start existing app container on servers"
|
|
def start
|
|
on(MRSK.hosts) do
|
|
execute *MRSK.auditor.record("Started app version #{MRSK.version}"), verbosity: :debug
|
|
execute *MRSK.app.start, raise_on_non_zero_exit: false
|
|
end
|
|
end
|
|
|
|
desc "stop", "Stop app container on servers"
|
|
def stop
|
|
on(MRSK.hosts) do
|
|
execute *MRSK.auditor.record("Stopped app"), verbosity: :debug
|
|
execute *MRSK.app.stop, raise_on_non_zero_exit: false
|
|
end
|
|
end
|
|
|
|
# FIXME: Drop in favor of just containers?
|
|
desc "details", "Show details about app containers"
|
|
def details
|
|
on(MRSK.hosts) { |host| puts_by_host host, capture_with_info(*MRSK.app.info) }
|
|
end
|
|
|
|
desc "exec [CMD]", "Execute a custom command on servers (use --help to show options)"
|
|
option :interactive, aliases: "-i", type: :boolean, default: false, desc: "Execute command over ssh for an interactive shell (use for console/bash)"
|
|
option :reuse, type: :boolean, default: false, desc: "Reuse currently running container instead of starting a new one"
|
|
def exec(cmd)
|
|
case
|
|
when options[:interactive] && options[:reuse]
|
|
say "Get current version of running container...", :magenta unless options[:version]
|
|
using_version(options[:version] || current_running_version) do |version|
|
|
say "Launching interactive command with version #{version} via SSH from existing container on #{MRSK.primary_host}...", :magenta
|
|
run_locally { exec MRSK.app.execute_in_existing_container_over_ssh(cmd, host: MRSK.primary_host) }
|
|
end
|
|
|
|
when options[:interactive]
|
|
say "Get most recent version available as an image...", :magenta unless options[:version]
|
|
using_version(options[:version] || most_recent_version_available) do |version|
|
|
say "Launching interactive command with version #{version} via SSH from new container on #{MRSK.primary_host}...", :magenta
|
|
run_locally { exec MRSK.app.execute_in_new_container_over_ssh(cmd, host: MRSK.primary_host) }
|
|
end
|
|
|
|
when options[:reuse]
|
|
say "Get current version of running container...", :magenta unless options[:version]
|
|
using_version(options[:version] || current_running_version) do |version|
|
|
say "Launching command with version #{version} from existing container...", :magenta
|
|
|
|
on(MRSK.hosts) do |host|
|
|
execute *MRSK.auditor.record("Executed cmd '#{cmd}' on app version #{version}"), verbosity: :debug
|
|
puts_by_host host, capture_with_info(*MRSK.app.execute_in_existing_container(cmd))
|
|
end
|
|
end
|
|
|
|
else
|
|
say "Get most recent version available as an image...", :magenta unless options[:version]
|
|
using_version(options[:version] || most_recent_version_available) do |version|
|
|
say "Launching command with version #{version} from new container...", :magenta
|
|
on(MRSK.hosts) do |host|
|
|
execute *MRSK.auditor.record("Executed cmd '#{cmd}' on app version #{version}"), verbosity: :debug
|
|
puts_by_host host, capture_with_info(*MRSK.app.execute_in_new_container(cmd))
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
desc "containers", "Show app containers on servers"
|
|
def containers
|
|
on(MRSK.hosts) { |host| puts_by_host host, capture_with_info(*MRSK.app.list_containers) }
|
|
end
|
|
|
|
desc "images", "Show app images on servers"
|
|
def images
|
|
on(MRSK.hosts) { |host| puts_by_host host, capture_with_info(*MRSK.app.list_images) }
|
|
end
|
|
|
|
desc "logs", "Show log lines from app on servers (use --help to show options)"
|
|
option :since, aliases: "-s", desc: "Show lines since timestamp (e.g. 2013-01-02T13:23:37Z) or relative (e.g. 42m for 42 minutes)"
|
|
option :lines, type: :numeric, aliases: "-n", desc: "Number of lines to show from each server"
|
|
option :grep, aliases: "-g", desc: "Show lines with grep match only (use this to fetch specific requests by id)"
|
|
option :follow, aliases: "-f", desc: "Follow log on primary server (or specific host set by --hosts)"
|
|
def logs
|
|
# FIXME: Catch when app containers aren't running
|
|
|
|
grep = options[:grep]
|
|
|
|
if options[:follow]
|
|
run_locally do
|
|
info "Following logs on #{MRSK.primary_host}..."
|
|
info MRSK.app.follow_logs(host: MRSK.primary_host, grep: grep)
|
|
exec MRSK.app.follow_logs(host: MRSK.primary_host, grep: grep)
|
|
end
|
|
else
|
|
since = options[:since]
|
|
lines = options[:lines].presence || ((since || grep) ? nil : 100) # Default to 100 lines if since or grep isn't set
|
|
|
|
on(MRSK.hosts) do |host|
|
|
begin
|
|
puts_by_host host, capture_with_info(*MRSK.app.logs(since: since, lines: lines, grep: grep))
|
|
rescue SSHKit::Command::Failed
|
|
puts_by_host host, "Nothing found"
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
desc "remove", "Remove app containers and images from servers"
|
|
def remove
|
|
stop
|
|
remove_containers
|
|
remove_images
|
|
end
|
|
|
|
desc "remove_container [VERSION]", "Remove app container with given version from servers", hide: true
|
|
def remove_container(version)
|
|
on(MRSK.hosts) do
|
|
execute *MRSK.auditor.record("Removed app container with version #{version}"), verbosity: :debug
|
|
execute *MRSK.app.remove_container(version: version)
|
|
end
|
|
end
|
|
|
|
desc "remove_containers", "Remove all app containers from servers", hide: true
|
|
def remove_containers
|
|
on(MRSK.hosts) do
|
|
execute *MRSK.auditor.record("Removed all app containers"), verbosity: :debug
|
|
execute *MRSK.app.remove_containers
|
|
end
|
|
end
|
|
|
|
desc "remove_images", "Remove all app images from servers", hide: true
|
|
def remove_images
|
|
on(MRSK.hosts) do
|
|
execute *MRSK.auditor.record("Removed all app images"), verbosity: :debug
|
|
execute *MRSK.app.remove_images
|
|
end
|
|
end
|
|
|
|
desc "version", "Show app version currently running on servers"
|
|
def version
|
|
on(MRSK.hosts) { |host| puts_by_host host, capture_with_info(*MRSK.app.current_running_version).strip }
|
|
end
|
|
|
|
private
|
|
def using_version(new_version)
|
|
if new_version
|
|
begin
|
|
old_version = MRSK.config.version
|
|
MRSK.config.version = new_version
|
|
yield new_version
|
|
ensure
|
|
MRSK.config.version = old_version
|
|
end
|
|
else
|
|
yield MRSK.config.version
|
|
end
|
|
end
|
|
|
|
def most_recent_version_available(host: MRSK.primary_host)
|
|
version = nil
|
|
on(host) { version = capture_with_info(*MRSK.app.most_recent_version_from_available_images).strip }
|
|
|
|
if version == "<none>"
|
|
raise "Most recent image available was not tagged with a version (returned <none>)"
|
|
else
|
|
version.presence
|
|
end
|
|
end
|
|
|
|
def current_running_version(host: MRSK.primary_host)
|
|
version = nil
|
|
on(host) { version = capture_with_info(*MRSK.app.current_running_version).strip }
|
|
version.presence
|
|
end
|
|
end
|