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Deploy locks

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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
2023-03-23 16:58:49 +00:00
parent 17e74910e4
commit 8d8f9f6ada
18 changed files with 516 additions and 219 deletions
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16
lib/mrsk/cli/server.rb
View File

@@ -1,14 +1,16 @@
class Mrsk::Cli::Server < Mrsk::Cli::Base
desc "bootstrap", "Ensure curl and Docker are installed on servers"
def bootstrap
on(MRSK.hosts + MRSK.accessory_hosts) do
dependencies_to_install = Array.new.tap do |dependencies|
dependencies << "curl" unless execute "which curl", raise_on_non_zero_exit: false
dependencies << "docker.io" unless execute "which docker", raise_on_non_zero_exit: false
end
with_lock do
on(MRSK.hosts + MRSK.accessory_hosts) do
dependencies_to_install = Array.new.tap do |dependencies|
dependencies << "curl" unless execute "which curl", raise_on_non_zero_exit: false
dependencies << "docker.io" unless execute "which docker", raise_on_non_zero_exit: false
end
if dependencies_to_install.any?
execute "apt-get update -y && apt-get install #{dependencies_to_install.join(" ")} -y"
if dependencies_to_install.any?
execute "apt-get update -y && apt-get install #{dependencies_to_install.join(" ")} -y"
end
end
end
end