feat: initial rock implementation

[i-chvets]

Description

metacontroller container image should be converted to ROCK.
This PR contains initial ROCK implementation based on best practices.

Summary of changes:

• Initial ROCK based on the same version of source code as upstream container.

Scan results:

ROCK image metacontroller:2.0.4_22.04_1
CRITICAL: 0 HIGH: 14 MED: 6 LOW: 0

As compared to upstream image metacontroller:2.0.4
CRITICAL: 3 HIGH: 41 MED: 11 LOW: 0

Testing

Manual testing was performed. See the log below.

Manual test log

$ docker run charmedkubeflow/metacontroller:2.0.4_22.04_1 exec pebble start metacontroller
2023-09-26T15:48:59.689Z [pebble] Started daemon.
2023-09-26T15:48:59.710Z [pebble] POST /v1/exec 20.143166ms 202
2023-09-26T15:48:59.727Z [pebble] GET /v1/tasks/1/websocket/control 16.942361ms 200
2023-09-26T15:48:59.727Z [pebble] GET /v1/tasks/1/websocket/stdio 62.045µs 200
2023-09-26T15:48:59.727Z [pebble] GET /v1/tasks/1/websocket/stderr 85.937µs 200
2023-09-26T15:48:59.768Z [pebble] POST /v1/services 27.166079ms 202
2023-09-26T15:48:59.768Z [pebble] Service "metacontroller" starting: metacontroller
2023-09-26T15:48:59.779Z [metacontroller] {"level":"info","ts":1695743339.779103,"msg":"Discovery cache flush interval","discovery_interval":30}
2023-09-26T15:48:59.779Z [metacontroller] {"level":"info","ts":1695743339.7791352,"msg":"API server object cache flush interval","cache_flush_interval":1800}
2023-09-26T15:48:59.779Z [metacontroller] {"level":"info","ts":1695743339.7791398,"msg":"Metrics http server address","port":":9999"}
2023-09-26T15:48:59.779Z [metacontroller] {"level":"info","ts":1695743339.7791443,"msg":"Metacontroller build information","version":"dev"}
2023-09-26T15:48:59.779Z [metacontroller] {"level":"error","ts":1695743339.7792091,"msg":"Terminating","error":"invalid configuration: no configuration has been provided, try setting KUBERNETES_MASTER environment variable","errorCauses":[{"error":"no configuration has been provided, try setting KUBERNETES_MASTER environment variable"}],"stacktrace":"runtime.main\n\t/snap/go/9362/src/runtime/proc.go:225"}
error: cannot perform the following tasks:
- Start service "metacontroller" (cannot start service: exited quickly with code 1)
2023-09-26T15:48:59.905Z [pebble] GET /v1/changes/1/wait 176.788211ms 200

[NohaIhab]

Tested and verified rock.
Best practices are followed, and logs are the same as the upstream image.

run ROCK

docker run metacontroller_2.0.4_22.04_1_amd64:rock exec pebble start metacontroller
2023-09-29T07:31:18.837Z [pebble] Started daemon.
2023-09-29T07:31:18.847Z [pebble] POST /v1/exec 8.412198ms 202
2023-09-29T07:31:18.856Z [pebble] GET /v1/tasks/1/websocket/control 7.737935ms 200
2023-09-29T07:31:18.857Z [pebble] GET /v1/tasks/1/websocket/stdio 162.925µs 200
2023-09-29T07:31:18.857Z [pebble] GET /v1/tasks/1/websocket/stderr 62.172µs 200
2023-09-29T07:31:18.867Z [pebble] POST /v1/services 5.143709ms 202
2023-09-29T07:31:18.873Z [pebble] Service "metacontroller" starting: metacontroller
2023-09-29T07:31:18.891Z [metacontroller] {"level":"info","ts":1695972678.8918495,"msg":"Discovery cache flush interval","discovery_interval":30}
2023-09-29T07:31:18.892Z [metacontroller] {"level":"info","ts":1695972678.8918855,"msg":"API server object cache flush interval","cache_flush_interval":1800}
2023-09-29T07:31:18.892Z [metacontroller] {"level":"info","ts":1695972678.8918946,"msg":"Metrics http server address","port":":9999"}
2023-09-29T07:31:18.892Z [metacontroller] {"level":"info","ts":1695972678.8919034,"msg":"Metacontroller build information","version":"dev"}
2023-09-29T07:31:18.892Z [metacontroller] {"level":"error","ts":1695972678.8921132,"msg":"Terminating","error":"invalid configuration: no configuration has been provided, try setting KUBERNETES_MASTER environment variable","errorCauses":[{"error":"no configuration has been provided, try setting KUBERNETES_MASTER environment variable"}],"stacktrace":"runtime.main\n\t/snap/go/9362/src/runtime/proc.go:225"}

run upstream image

docker run metacontrollerio/metacontroller:v2.0.4
{"level":"info","ts":1695972763.202869,"msg":"Discovery cache flush interval","discovery_interval":30}
{"level":"info","ts":1695972763.202909,"msg":"API server object cache flush interval","cache_flush_interval":1800}
{"level":"info","ts":1695972763.202921,"msg":"Metrics http server address","port":":9999"}
{"level":"info","ts":1695972763.2029326,"msg":"Metacontroller build information","version":"v2.0.4"}
{"level":"error","ts":1695972763.2047753,"msg":"Terminating","error":"invalid configuration: no configuration has been provided, try setting KUBERNETES_MASTER environment variable","errorCauses":[{"error":"no configuration has been provided, try setting KUBERNETES_MASTER environment variable"}],"stacktrace":"runtime.main\n\t/usr/local/go/src/runtime/proc.go:225"}

Approved