Build images with Dockerfile instead of pbrx

Use the opendevorg/python-builder image to build nodepool images
with a Dockerfile and multi-stage builds.

bindep wasn't installing gcc for dpkg. Remove the platform restrictions
for it.

Change-Id: I0282b75ffad3d0ae1b589381010a3d4273fceb07

.dockerignore

@@ -0,0 +1,3 @@
+.mypy_cache
+.stestr
+.tox

.zuul.yaml

@@ -155,6 +155,61 @@
     required-projects:
       - openstack-infra/nodepool
 
+- secret:
+    name: nodepool-dockerhub
+    data:
+      username: zuulzuul
+      password: !encrypted/pkcs1-oaep
+        - VV5m4XbsYvAz0/7T+WoIypvD3ijRsPYrGo4O5JuOHt6TX14s9B1KddeMwnabEEKapPdbb
+          cwqbzFKoHRMi8DdXiDKxrgbTSC1jb3BvKq7XE0/xF4Bq2dM+r3yDnXS6a7BuijSqFSiMG
+          /9bf0jqEAWXWCvbYUAxKOklJIRLjcKywCP5CulmW6EV8f1Iya8Y7UGpjGyL34FVQuc52Y
+          5MLp+Dra95pvBJMgikbu7LtMPCXOMctUFBpwNArCjWKGhz00UZwyAmsbPPHwQWb+884ZP
+          v9zi2FuRAL+rn4DRVwyIw28ZdCEr5F5EkZon3lSIhikhdQIyHPtW8VwMJTL4RxBdmgcEt
+          +zZBbLlOU+0AHPGLlO/yQNvHeSzwY9pe2oIGuqSu3h6zp6Y0NIE/Q0VpiIXWpOAnLOmno
+          uOd3j9tZ1beol2mg4Yk7rOaXu1Fvtfhd1K3LpLzEbiGzCMIEZuFHU2ZInAbUmtm0BtbDa
+          /bYvI9dB/uqA2xgse5rVMa++v3AfWJTJhFY/wBU4fHOWlFBUZKFuSoijUcWMfnfMMyU2B
+          A5CQKhv4Wmtzbvo/oneYkwFOTYaPNj2DS0BcFJFkR8FZDYmTBPnKoBH5wpwwnrzPOpCMa
+          L21z+Vp1Vce1XCsaOduMrmZDvuQcK1YOKIIUeElAQw8GuwTfcXqekoPvp54SeE=
+
+- job:
+    name: nodepool-build-image
+    parent: build-docker-image
+    description: Build Docker images.
+    vars: &nodepool_image_vars
+      docker_images:
+        - context: .
+          repository: zuul/nodepool-base
+          target: nodepool-base
+        - context: .
+          repository: zuul/nodepool
+          target: nodepool
+        - context: .
+          repository: zuul/nodepool-launcher
+          target: nodepool-launcher
+        - context: .
+          repository: zuul/nodepool-builder
+          target: nodepool-builder
+
+- job:
+    name: nodepool-upload-image
+    parent: upload-docker-image
+    description: Build Docker images and upload to Docker Hub.
+    vars: *nodepool_image_vars
+    secrets:
+      - name: docker_credentials
+        secret: nodepool-dockerhub
+        pass-to-parent: true
+
+- job:
+    name: nodepool-promote-image
+    parent: promote-docker-image
+    description: Promote previously uploaded Docker images.
+    vars: *nodepool_image_vars
+    secrets:
+      - name: docker_credentials
+        secret: nodepool-dockerhub
+        pass-to-parent: true
+
 - project:
     check:
       jobs:
@@ -171,9 +226,7 @@
             voting: false
         - nodepool-functional-k8s
         - nodepool-functional-openshift
-        - pbrx-build-container-images:
-            vars:
-              pbrx_prefix: zuul
+        - nodepool-build-image
         - zuul-quick-start
     gate:
       jobs:
@@ -182,17 +235,14 @@
         - tox-py35
         - tox-py36:
             nodeset: ubuntu-bionic
-        - pbrx-build-container-images:
-            vars:
-              pbrx_prefix: zuul
         - zuul-quick-start
+        - nodepool-upload-image
     post:
       jobs:
         - publish-zuul-docs
-        - openstackzuul-pbrx-push-container-images:
-            vars:
-              pbrx_prefix: zuul
-
+    promote:
+      jobs:
+        - nodepool-promote-image
     experimental:
       jobs:
         - nodepool-functional-py35-debian-src

Dockerfile

@@ -0,0 +1,33 @@
+# Copyright (c) 2019 Red Hat, Inc.
+#
+# 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 opendevorg/python-builder as builder
+
+COPY . /tmp/src
+RUN assemble
+
+FROM opendevorg/python-base as nodepool-base
+
+COPY --from=builder /output/ /output
+RUN /output/install-from-bindep
+
+FROM nodepool-base as nodepool
+CMD ["/usr/local/bin/nodepool"]
+
+FROM nodepool-base as nodepool-launcher
+CMD ["/usr/local/bin/nodepool-launcher"]
+
+FROM nodepool-base as nodepool-builder
+CMD ["/usr/local/bin/nodepool-builder"]

bindep.txt

@@ -1,7 +1,7 @@
 # This is a cross-platform list tracking distribution packages needed by tests;
 # see http://docs.openstack.org/infra/bindep/ for additional information.
 
-gcc [compile test platform:rpm platform:apk]
+gcc [compile test]
 libffi-devel [platform:rpm]
 libffi-dev [platform:dpkg]
 libffi-dev [compile test platform:apk]