No longer require that "upgrade_storage_uri" is set. This will enable migrations that use non-disk storage in future, but it should be noted that the migration from disk to non-disk (postgresql) storage is a separate step that should only be done after upgrading to 0.14.0 - see issue #1079.
[x] Update kvx to support namespace migrations.
[x] Remove upgrade_storage_uri from Config
[x] Remove all direct file / directory access in upgrade code (use KV instead)
[x] Move data_dir_from_storage_uri to Config (only used for tls_dirs, repo_dir and pid_file)
[x] Move storage_uri_from_data_dir to Config
[x] Use the in-memory data store for automated upgrade tests (make this configurable)
Note: issue #1098 was made to improve version upgrades in clustered setups.
No longer require that "upgrade_storage_uri" is set. This will enable migrations that use non-disk storage in future, but it should be noted that the migration from disk to non-disk (postgresql) storage is a separate step that should only be done after upgrading to 0.14.0 - see issue #1079.
kvxto support namespace migrations.Configdata_dir_from_storage_uritoConfig(only used fortls_dirs,repo_dirandpid_file)storage_uri_from_data_dirtoConfigNote: issue #1098 was made to improve version upgrades in clustered setups.