Deploy locks
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.
This commit is contained in:
Donal McBreen
@@ -1,34 +1,38 @@
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class Mrsk::Cli::Accessory < Mrsk::Cli::Base
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desc "boot [NAME]", "Boot new accessory service on host (use NAME=all to boot all accessories)"
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def boot(name)
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if name == "all"
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MRSK.accessory_names.each { |accessory_name| boot(accessory_name) }
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else
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with_accessory(name) do |accessory|
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directories(name)
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upload(name)
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with_lock do
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if name == "all"
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MRSK.accessory_names.each { |accessory_name| boot(accessory_name) }
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else
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with_accessory(name) do |accessory|
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directories(name)
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upload(name)
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on(accessory.host) do
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execute *MRSK.registry.login
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execute *MRSK.auditor.record("Booted #{name} accessory"), verbosity: :debug
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execute *accessory.run
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on(accessory.host) do
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execute *MRSK.registry.login
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execute *MRSK.auditor.record("Booted #{name} accessory"), verbosity: :debug
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execute *accessory.run
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end
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audit_broadcast "Booted accessory #{name}" unless options[:skip_broadcast]
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end
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audit_broadcast "Booted accessory #{name}" unless options[:skip_broadcast]
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end
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end
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end
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desc "upload [NAME]", "Upload accessory files to host", hide: true
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def upload(name)
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with_accessory(name) do |accessory|
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on(accessory.host) do
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accessory.files.each do |(local, remote)|
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accessory.ensure_local_file_present(local)
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with_lock do
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with_accessory(name) do |accessory|
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on(accessory.host) do
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accessory.files.each do |(local, remote)|
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accessory.ensure_local_file_present(local)
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execute *accessory.make_directory_for(remote)
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upload! local, remote
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execute :chmod, "755", remote
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execute *accessory.make_directory_for(remote)
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upload! local, remote
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execute :chmod, "755", remote
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end
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end
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end
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end
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@@ -36,10 +40,12 @@ class Mrsk::Cli::Accessory < Mrsk::Cli::Base
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desc "directories [NAME]", "Create accessory directories on host", hide: true
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def directories(name)
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with_accessory(name) do |accessory|
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on(accessory.host) do
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accessory.directories.keys.each do |host_path|
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execute *accessory.make_directory(host_path)
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with_lock do
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with_accessory(name) do |accessory|
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on(accessory.host) do
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accessory.directories.keys.each do |host_path|
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execute *accessory.make_directory(host_path)
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end
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end
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end
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end
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@@ -47,38 +53,46 @@ class Mrsk::Cli::Accessory < Mrsk::Cli::Base
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desc "reboot [NAME]", "Reboot existing accessory on host (stop container, remove container, start new container)"
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def reboot(name)
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with_accessory(name) do |accessory|
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stop(name)
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remove_container(name)
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boot(name)
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with_lock do
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with_accessory(name) do |accessory|
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stop(name)
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remove_container(name)
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boot(name)
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end
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end
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end
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desc "start [NAME]", "Start existing accessory container on host"
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def start(name)
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with_accessory(name) do |accessory|
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on(accessory.host) do
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execute *MRSK.auditor.record("Started #{name} accessory"), verbosity: :debug
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execute *accessory.start
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with_lock do
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with_accessory(name) do |accessory|
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on(accessory.host) do
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execute *MRSK.auditor.record("Started #{name} accessory"), verbosity: :debug
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execute *accessory.start
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end
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end
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end
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end
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desc "stop [NAME]", "Stop existing accessory container on host"
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def stop(name)
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with_accessory(name) do |accessory|
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on(accessory.host) do
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execute *MRSK.auditor.record("Stopped #{name} accessory"), verbosity: :debug
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execute *accessory.stop, raise_on_non_zero_exit: false
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with_lock do
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with_accessory(name) do |accessory|
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on(accessory.host) do
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execute *MRSK.auditor.record("Stopped #{name} accessory"), verbosity: :debug
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execute *accessory.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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end
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desc "restart [NAME]", "Restart existing accessory container on host"
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def restart(name)
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with_accessory(name) do
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stop(name)
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start(name)
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with_lock do
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with_accessory(name) do
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stop(name)
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start(name)
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end
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end
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end
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