Refactor plugin management:
- support multiple plugins per executable
- support restarting a plugin process in the event it terminates
- simplify plugin lifecycle management by using separate managers for
each scope (server vs backup vs restore)
Signed-off-by: Andy Goldstein <andy.goldstein@gmail.com>
* add a metrics package to handle metric registration and publishing
* add a metricsAddress field to the server struct
* make metrics a part of the server
* start a metrics endpoint as part of starting the controllers
* instrument backup_controller to report metrics
* update cli-reference docs
* update example deployments with prometheus annotations
* update 'pkg/install' tooling with prometheus annotations
Signed-off-by: Ashish Amarnath <ashish.amarnath@gmail.com>
We ran into a lot of problems using a finalizer on the backup to allow
the Ark server to clean up all associated backup data when deleting a
backup.
Users also found it less than desirable that deleting the heptio-ark
namespace resulted in all the backup data being deleted.
This removes the finalizer and replaces it with an explicit
DeleteBackupRequest that is created as a means of requesting the
deletion of a backup and all its associated data. This is what `ark
backup delete` does.
If you use kubectl to delete a backup or to delete the heptio-ark
namespace, this no longer deletes associated backups. Additionally, as
long as the heptio-ark namespace still exists, the Ark server's
BackupSyncController will continually sync backups into the heptio-ark
namespace from object storage.
Signed-off-by: Andy Goldstein <andy.goldstein@gmail.com>
Add --force and --confirm to `ark backup delete` to support forced
backup deletion. This forcibly removes the Ark GC finalizer (if it's
present) from a backup and will orphan any resources associated with the
backup, such as backup tarballs in object storage, persistent volume
snapshots, and restores for the backup.
If a backup has a deletion timestamp, display `Deleting` in `ark backup
describe` and `ark backup get`.
Signed-off-by: Andy Goldstein <andy.goldstein@gmail.com>
Delete all objects in backup "dir" when deleting a backup, instead of
hard-coding individual file names/types. This way, we'll be able to
delete log files and anything else we add without having to update our
deletion code.
Signed-off-by: Andy Goldstein <andy.goldstein@gmail.com>
Prepping to roll back to the same version of testify that client-go
uses, and that does not have NoErrorf.
Signed-off-by: Andy Goldstein <andy.goldstein@gmail.com>
