8d8f9f6ada
Add a deploy lock for commands that are unsafe to run concurrently.
The lock is taken by creating a `mrsk_lock` directory on the primary
host. Details of who took the lock are added to a details file in that
directory.
Additional CLI commands have been added to manual release and acquire
the lock and to check its status.
```
Commands:
mrsk lock acquire -m, --message=MESSAGE # Acquire the deploy lock
mrsk lock help [COMMAND] # Describe subcommands or one specific subcommand
mrsk lock release # Release the deploy lock
mrsk lock status # Report lock status
Options:
-v, [--verbose], [--no-verbose] # Detailed logging
-q, [--quiet], [--no-quiet] # Minimal logging
[--version=VERSION] # Run commands against a specific app version
-p, [--primary], [--no-primary] # Run commands only on primary host instead of all
-h, [--hosts=HOSTS] # Run commands on these hosts instead of all (separate by comma)
-r, [--roles=ROLES] # Run commands on these roles instead of all (separate by comma)
-c, [--config-file=CONFIG_FILE] # Path to config file
# Default: config/deploy.yml
-d, [--destination=DESTINATION] # Specify destination to be used for config file (staging -> deploy.staging.yml)
-B, [--skip-broadcast], [--no-skip-broadcast] # Skip audit broadcasts
```
If we add support for running multiple deployments on a single server
we'll need to extend the locking to lock per deployment.
104 lines
3.2 KiB
Ruby
104 lines
3.2 KiB
Ruby
class Mrsk::Cli::Traefik < Mrsk::Cli::Base
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desc "boot", "Boot Traefik on servers"
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def boot
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with_lock do
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on(MRSK.traefik_hosts) { execute *MRSK.traefik.run, raise_on_non_zero_exit: false }
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end
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end
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desc "reboot", "Reboot Traefik on servers (stop container, remove container, start new container)"
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def reboot
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with_lock do
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stop
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remove_container
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boot
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end
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end
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desc "start", "Start existing Traefik container on servers"
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def start
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with_lock do
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on(MRSK.traefik_hosts) do
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execute *MRSK.auditor.record("Started traefik"), verbosity: :debug
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execute *MRSK.traefik.start, raise_on_non_zero_exit: false
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end
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end
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end
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desc "stop", "Stop existing Traefik container on servers"
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def stop
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with_lock do
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on(MRSK.traefik_hosts) do
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execute *MRSK.auditor.record("Stopped traefik"), verbosity: :debug
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execute *MRSK.traefik.stop, raise_on_non_zero_exit: false
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end
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end
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end
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desc "restart", "Restart existing Traefik container on servers"
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def restart
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with_lock do
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stop
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start
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end
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end
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desc "details", "Show details about Traefik container from servers"
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def details
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on(MRSK.traefik_hosts) { |host| puts_by_host host, capture_with_info(*MRSK.traefik.info), type: "Traefik" }
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end
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desc "logs", "Show log lines from Traefik on servers"
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option :since, aliases: "-s", desc: "Show logs since timestamp (e.g. 2013-01-02T13:23:37Z) or relative (e.g. 42m for 42 minutes)"
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option :lines, type: :numeric, aliases: "-n", desc: "Number of log lines to pull from each server"
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option :grep, aliases: "-g", desc: "Show lines with grep match only (use this to fetch specific requests by id)"
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option :follow, aliases: "-f", desc: "Follow logs on primary server (or specific host set by --hosts)"
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def logs
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grep = options[:grep]
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if options[:follow]
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run_locally do
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info "Following logs on #{MRSK.primary_host}..."
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info MRSK.traefik.follow_logs(host: MRSK.primary_host, grep: grep)
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exec MRSK.traefik.follow_logs(host: MRSK.primary_host, grep: grep)
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end
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else
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since = options[:since]
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lines = options[:lines].presence || ((since || grep) ? nil : 100) # Default to 100 lines if since or grep isn't set
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on(MRSK.traefik_hosts) do |host|
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puts_by_host host, capture(*MRSK.traefik.logs(since: since, lines: lines, grep: grep)), type: "Traefik"
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end
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end
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end
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desc "remove", "Remove Traefik container and image from servers"
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def remove
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with_lock do
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stop
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remove_container
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remove_image
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end
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end
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desc "remove_container", "Remove Traefik container from servers", hide: true
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def remove_container
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with_lock do
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on(MRSK.traefik_hosts) do
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execute *MRSK.auditor.record("Removed traefik container"), verbosity: :debug
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execute *MRSK.traefik.remove_container
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end
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end
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end
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desc "remove_container", "Remove Traefik image from servers", hide: true
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def remove_image
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with_lock do
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on(MRSK.traefik_hosts) do
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execute *MRSK.auditor.record("Removed traefik image"), verbosity: :debug
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execute *MRSK.traefik.remove_image
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end
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end
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end
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end
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