[RFC qemu.qmp PATCH 10/24] Add build and test container to gitlab CI configuration

[John Snow <jsnow@redhat.com>]

Heavily copy-pasted from the QEMU source tree, with bits and pieces not
needed for this repository trimmed down.

Signed-off-by: John Snow <jsnow@redhat.com>
---
 .gitlab-ci.d/containers.yml    | 28 ++++++++++++++++++++++++++++
 .gitlab-ci.d/index.yml         |  8 ++++++++
 .gitlab-ci.d/python.Dockerfile | 31 +++++++++++++++++++++++++++++++
 .gitlab-ci.yml                 |  3 +++
 INDEX.rst                      |  2 ++
 5 files changed, 72 insertions(+)
 create mode 100644 .gitlab-ci.d/containers.yml
 create mode 100644 .gitlab-ci.d/index.yml
 create mode 100644 .gitlab-ci.d/python.Dockerfile
 create mode 100644 .gitlab-ci.yml

diff --git a/.gitlab-ci.d/containers.yml b/.gitlab-ci.d/containers.yml
new file mode 100644
index 0000000..fdcbbe4
--- /dev/null
+++ b/.gitlab-ci.d/containers.yml
@@ -0,0 +1,28 @@
+# Heavily inspired-by/copy-pasted-from the
+# container template from the QEMU source tree.
+
+.container_job_template:
+  image: docker:stable
+  stage: containers
+  services:
+    - docker:dind
+  before_script:
+    - export TAG="$NAME"
+    - export FQTAG="$CI_REGISTRY_IMAGE/$TAG:latest"
+    - docker info
+    - docker login $CI_REGISTRY -u "$CI_REGISTRY_USER" -p "$CI_REGISTRY_PASSWORD"
+  script:
+    - echo "TAG:$TAG"
+    - echo "FQTAG:$FQTAG"
+    - cd .gitlab-ci.d
+    - docker pull "$FQTAG"
+    - docker build --cache-from "$FQTAG" -t "$TAG" -f "$NAME.Dockerfile" .
+    - docker tag "$TAG" "$FQTAG"
+    - docker push "$FQTAG"
+  after_script:
+    - docker logout
+
+python-container:
+  extends: .container_job_template
+  variables:
+    NAME: python
diff --git a/.gitlab-ci.d/index.yml b/.gitlab-ci.d/index.yml
new file mode 100644
index 0000000..5ef8fcf
--- /dev/null
+++ b/.gitlab-ci.d/index.yml
@@ -0,0 +1,8 @@
+# This file contains the set of jobs run by this project:
+# https://gitlab.com/jsnow/qemu.qmp/-/pipelines
+
+stages:
+  - containers
+
+include:
+  - local: '/.gitlab-ci.d/containers.yml'
diff --git a/.gitlab-ci.d/python.Dockerfile b/.gitlab-ci.d/python.Dockerfile
new file mode 100644
index 0000000..9501ed4
--- /dev/null
+++ b/.gitlab-ci.d/python.Dockerfile
@@ -0,0 +1,31 @@
+# Python library build & testing environment.
+
+# Fedora is convenient, as it allows us to easily access multiple
+# versions of the python interpreter, which is great for tox testing.
+FROM fedora:latest
+
+# 「はじめまして！」
+MAINTAINER John Snow <jsnow@redhat.com>
+
+# Please keep the packages sorted alphabetically.
+RUN dnf --setopt=install_weak_deps=False install -y \
+        gcc \
+        git \
+        make \
+        pipenv \
+        python3 \
+        python3-pip \
+        python3-tox \
+        python3-virtualenv \
+        python3.10 \
+        python3.6 \
+        python3.7 \
+        python3.8 \
+        python3.9 \
+    && python3 -m pip install --upgrade \
+        build \
+        pip \
+    && dnf clean all \
+    && rm -rf ~/.cache/pip \
+    && rm -rf /var/cache/dnf \
+    ;
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
new file mode 100644
index 0000000..f93a1e1
--- /dev/null
+++ b/.gitlab-ci.yml
@@ -0,0 +1,3 @@
+# Hello, is it me you're looking for?
+include:
+  - local: '/.gitlab-ci.d/index.yml'
diff --git a/INDEX.rst b/INDEX.rst
index 9c45740..8b7a56a 100644
--- a/INDEX.rst
+++ b/INDEX.rst
@@ -47,6 +47,8 @@ Files in this directory
 
 - ``qemu/`` Python 'qemu' namespace package source directory.
 - ``tests/`` Python package tests directory.
+- ``.gitlab-ci.d/`` Files used for GitLab CI configuration.
+- ``.gitlab-ci.yml`` Primary GitLab CI configuration file.
 - ``avocado.cfg`` Configuration for the Avocado test-runner.
   Used by ``make check`` et al.
 - ``INDEX.rst`` you are here!
-- 
2.31.1