Update Katib operator and image

Updates Docker image to include changes from kubeflow#1450, and updates
operator to latest version of operator framework.

.github/workflows/test-charmed-katib.yaml

@@ -5,6 +5,25 @@ on:
   - pull_request
 
 jobs:
+  lint:
+    name: Lint
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Check out code
+      uses: actions/checkout@v2
+
+    - name: Install dependencies
+      run: |
+        sudo apt-get install python3-setuptools
+        sudo pip3 install black flake8
+
+    - name: Check black
+      run: black --check operators
+
+    - name: Check flake8
+      run: cd operators && flake8
+
   build:
     name: Test
     runs-on: ubuntu-latest
@@ -25,7 +44,7 @@ jobs:
           sudo snap install juju --classic
           sudo snap install juju-helpers --classic
           sudo snap install juju-wait --classic
-          sudo apt update
+          sudo pip3 install charmcraft
 
       - name: Build Docker images
         run: |
@@ -47,21 +66,14 @@ jobs:
           git clone git://git.launchpad.net/canonical-osm
           cp -r canonical-osm/charms/interfaces/juju-relation-mysql mysql
           sg microk8s -c 'juju bootstrap microk8s uk8s'
-          juju add-model katib
+          juju add-model kubeflow
           juju bundle deploy -b bundle-edge.yaml --build
           juju wait -wvt 300
 
       - name: Test Katib
         run: |
           set -eux
-          kubectl run \
-              --rm \
-              -i \
-              --restart=Never \
-              --image=ubuntu \
-              katib-check \
-              -- \
-              bash -c "apt update && apt install -y curl && curl -f http://katib-ui.katib.svc.cluster.local:8080/katib/"
+          kubectl apply -f examples/v1beta1/random-example.yaml
 
       - name: Get pod statuses
         run: kubectl get all -A
@@ -71,14 +83,26 @@ jobs:
         run: juju status
         if: failure()
 
-      - name: Get katib-controller logs
-        run: kubectl logs --tail 100 -nkatib -ljuju-app=katib-controller
+      - name: Get katib-controller workload logs
+        run: kubectl logs --tail 100 -nkubeflow -ljuju-app=katib-controller
+        if: failure()
+
+      - name: Get katib-controller operator logs
+        run: kubectl logs --tail 100 -nkubeflow -ljuju-operator=katib-controller
+        if: failure()
+
+      - name: Get katib-ui workload logs
+        run: kubectl logs --tail 100 -nkubeflow -ljuju-app=katib-ui
+        if: failure()
+
+      - name: Get katib-ui operator logs
+        run: kubectl logs --tail 100 -nkubeflow -ljuju-operator=katib-ui
         if: failure()
 
-      - name: Get katib-ui logs
-        run: kubectl logs --tail 100 -nkatib -ljuju-app=katib-ui
+      - name: Get katib-db-manager workload logs
+        run: kubectl logs --tail 100 -nkubeflow -ljuju-app=katib-db-manager
         if: failure()
 
-      - name: Get katib-manager logs
-        run: kubectl logs --tail 100 -nkatib -ljuju-app=katib-manager
+      - name: Get katib-db-manager operator logs
+        run: kubectl logs --tail 100 -nkubeflow -ljuju-operator=katib-db-manager
         if: failure()

.gitignore

@@ -4,6 +4,8 @@ __pycache__/
 .coverage
 .pytest_cache
 *.egg-info
+build/
+*.charm
 
 # Project specific ignore files
 *.swp

operators/.flake8

@@ -0,0 +1,2 @@
+[flake8]
+max-line-length = 100

operators/bundle-edge.yaml

@@ -4,7 +4,7 @@ applications:
     charm: katib-controller
     scale: 1
     resources:
-      oci-image: docker.io/kubeflowkatib/katib-controller:latest
+      oci-image: rocks.canonical.com:5000/kubeflow/katib-controller:edge
   katib-db:
     charm: cs:~charmed-osm/mariadb-k8s
     scale: 1

operators/bundle.yaml

@@ -1,8 +1,8 @@
 bundle: kubernetes
 applications:
-  katib-controller: { charm: katib-controller,            scale: 1, annotations: { gui-x:   '0', gui-y:    '0' } }
-  katib-db:         { charm: cs:~charmed-osm/mariadb-k8s, scale: 1, annotations: { gui-x:   '0', gui-y:  '300' }, options: { database: katib } }
-  katib-db-manager: { charm: katib-db-manager,            scale: 1, annotations: { gui-x: '300', gui-y:    '0' } }
-  katib-ui:         { charm: katib-ui,                    scale: 1, annotations: { gui-x: '300', gui-y:  '300' } }
+  katib-controller: { charm: katib-controller,            scale: 1 }
+  katib-db:         { charm: cs:~charmed-osm/mariadb-k8s, scale: 1, options: { database: katib } }
+  katib-db-manager: { charm: katib-db-manager,            scale: 1 }
+  katib-ui:         { charm: katib-ui,                    scale: 1 }
 relations:
 - [katib-db-manager, katib-db]

operators/katib-controller/metadata.yaml

@@ -8,14 +8,16 @@ description: |
   hyperparameters of applications written in any language of the users’ choice and natively
   supports many ML frameworks, such as TensorFlow, MXNet, PyTorch, XGBoost, and others.
 tags: [ai, bigdata, katib, kubeflow, machine-learning, hyperparameter]
-maintainers: [Kenneth Koski <kenneth.koski@canonical.com>]
+maintainers:
+  - Dominik Fleischmann <dominik.fleischmann@canonical.com>
+  - Kenneth Koski <kenneth.koski@canonical.com>
 series: [kubernetes]
 resources:
   oci-image:
     type: oci-image
     description: Backing OCI image
     auto-fetch: true
-    upstream-source: docker.io/kubeflowkatib/katib-controller:v1beta1-a96ff59
+    upstream-source: rocks.canonical.com:5000/kubeflow/katib-controller:edge
 provides:
   katib-controller:
     interface: http