Build docker images

This builds and publishes docker images to opendevorg/grafyaml
so that users can run this with "docker run ...".

Also, appease the pep8 gods.

Change-Id: Ia30438953e5c73a01ae0cd32afb660442e0e6e39

.zuul.yaml

@@ -0,0 +1,81 @@
+- secret:
+    name: grafyaml-dockerhub
+    data:
+      username: opendevzuul
+      password: !encrypted/pkcs1-oaep
+        - bbW9hdHj1GzhXJky9VkO/FKqiwWJDvaJGn+z/rB/i4ssGu8keRiFCEXHBzzioDe9OWlux
+          aFNz1T3x7cUlWMEQ0ZDvD7GeQ9dRSo3lWctoS0P4iMClmZKjMDI+TSuLdVg2GlH6CtMiH
+          b0Flw5j4BsP2VtbN71KOs+J8ybLVYivdAJmDGVST4gBBI1vL5RHIMr98BEx7oGqcB+h/1
+          FtRIWqCjWr+Jvj6C+rdGKiocb77sJyFfZ1X7H97o5TETQeYs118kBP0iWv5FksoflUQU0
+          cckE6u0oDrPx/4ea3pqKPLD9/B8/vAX+WUd1y2jUnmUmZvnEeTxekjXFUTrCVLqZc1FTC
+          ZbbL/CQc/25QOI7sEeUigcYkPINhs6OsEe36gE2fKIjWEdVdunNOMxeQ/RS86OttzGlcP
+          x+ADrUTQjkuEnxZo2WTYL4kHuzPr3//DsPjLJBq8hoKXlT3fpdH5pHaiVBC3oIVCWfzSa
+          1LfX7XL0eFIwEc99gAfbfhljE9P77ZWX2zD9reyNNH4VCI9u92RKF5+VZ5ResOdOA0z0r
+          sMYue1hqHYLLQq9O42t3PBfVMrS1V+GcJ8oWn+9sOll16kQw+wVpLmba/0Btdq0MSdWxc
+          itrO3WwA2kqDd6qtHYAd0c9BEx8HDt66Rl56AN30LBtPRTdhNc93QDDJlPvqZE=
+
+- job:
+    name: grafyaml-build-image
+    parent: opendev-build-docker-image
+    description: Build a Docker image of grafyaml
+    allowed-projects: opendev/grafyaml
+    timeout: 2700
+    requires:
+      - python-builder-3.8-container-image
+      - python-base-3.8-container-image
+    provides:
+      - grafyaml-container-image
+    vars: &grafyaml_image_vars
+      docker_images:
+        - context: .
+          repository: opendevorg/grafyaml
+          tags:
+            &imagetag "{{ zuul.tag is defined | ternary([zuul.get('tag', '').split('.')[0], '.'.join(zuul.get('tag', '').split('.')[:2]), zuul.get('tag', '')], ['latest']) }}"
+
+- job:
+    name: grafyaml-upload-image
+    parent: opendev-upload-docker-image
+    description: Build the grafyaml Docker image and upload to Docker Hub.
+    timeout: 3600
+    requires:
+      - python-builder-3.8-container-image
+      - python-base-3.8-container-image
+    provides: grafyaml-container-image
+    vars: *grafyaml_image_vars
+    secrets:
+      - name: docker_credentials
+        secret: grafyaml-dockerhub
+        pass-to-parent: true
+
+- job:
+    name: grafyaml-promote-image
+    parent: opendev-promote-docker-image
+    description: Promote previously uploaded Docker image.
+    vars: *grafyaml_image_vars
+    secrets:
+      - name: docker_credentials
+        secret: grafyaml-dockerhub
+        pass-to-parent: true
+
+- project:
+    vars:
+      release_python: python3
+    check:
+      jobs:
+        - grafyaml-build-image
+    gate:
+      jobs:
+        - grafyaml-upload-image
+    promote:
+      jobs:
+        - grafyaml-promote-image
+    release:
+      jobs:
+        - upload-docker-image:
+            secrets:
+              name: docker_credentials
+              secret: grafyaml-dockerhub
+              pass-to-parent: true
+            vars:
+              <<: *grafyaml_image_vars
+              upload_docker_image_promote: false

Dockerfile

@@ -0,0 +1,31 @@
+# Copyright (c) 2020 Red Hat, Inc.
+# Copyright (c) 2021 Acme Gating, LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+# implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+FROM docker.io/opendevorg/python-builder:3.8 as builder
+
+COPY . /tmp/src
+RUN assemble
+
+FROM docker.io/opendevorg/python-base:3.8
+
+COPY --from=builder /output/ /output
+RUN /output/install-from-bindep
+
+# To use this image, you must supply GRAFANA_URL as an env var, and
+# may optionally supply GRAFANA_APIKEY.
+# Mount the dashboards at /grafana.
+
+ENTRYPOINT /usr/local/bin/grafana-dashboard --debug --grafana-url="${GRAFANA_URL}" ${GRAFANA_APIKEY:+--grafana-apikey "$GRAFANA_APIKEY"} update /grafana

grafana_dashboards/schema/template/query.py

@@ -28,8 +28,8 @@ class Query(Base):
             v.Required('includeAll', default=False): v.All(bool),
             v.Required('multi', default=False): v.All(bool),
             v.Required('query', default=''): v.All(str),
-            v.Required('refresh', default=1): \
-                v.All(int, v.Range(min=0, max=2)),
+            v.Required('refresh',
+                       default=1): v.All(int, v.Range(min=0, max=2)),
             v.Optional('datasource'): v.All(str),
             v.Optional('hide'): v.All(int, v.Range(min=0, max=2)),
         }