Create Docker files for Tobiko project

- Dockerfile file is intended for running test cases
  without using tox
- infrared_plugin/Dockerfile file is intended to run
  Tobiko IR plugin
- docker-compose file is intended to emulate the tox
  experience by using docker

All images are build staring from official CentOS 8
image.

Change-Id: I2f57f6e1c9c6161cef9448d25027d784ebd37e2c

.dockerignore

@@ -0,0 +1,47 @@
+*.sw?
+*.egg
+*.egg-info
+*.pyc
+*.log
+
+# Hidden files
+.coverage
+.coverage.*
+.eggs
+.mypy_cache
+.stestr
+.test
+.testrepository
+.tobiko-env
+.tox
+.vagrant
+.venv
+
+__pycache__
+AUTHORS
+build/*
+ChangeLog
+doc/build/*
+cover/
+dist/
+etc/*.sample
+report/
+test_results*
+zuul/versioninfo
+
+# Files created by releasenotes build
+releasenotes/build
+
+# Docs related files
+doc/source/_static/config-samples/*.sample
+
+Pipfile.lock
+
+# Tobiko configuration file
+tobiko.conf
+clouds.yaml
+ssh_config
+
+# Infrared things
+.infrared
+workspace.tgz

Dockerfile

@@ -0,0 +1,39 @@
+ARG base_image="docker.io/library/centos:8"
+
+FROM "${base_image}" as tobiko
+
+# Install binary dependencies
+RUN dnf install -y gcc git python3 python3-devel && \
+    alternatives --set python /usr/bin/python3
+
+# Get Tobiko source files
+ARG tobiko_src_dir=.
+ENV TOBIKO_DIR=/src/tobiko
+# Copy Tobiko source files
+RUN mkdir /src
+ADD "${tobiko_src_dir}" "${TOBIKO_DIR}"
+WORKDIR "${TOBIKO_DIR}"
+
+# Install Python requirements
+ARG constraints_file=https://opendev.org/openstack/requirements/raw/branch/master/upper-constraints.txt
+ENV PIP_INSTALL="python -m pip install -c ${constraints_file}"
+RUN set -x && \
+    python --version && \
+    ${PIP_INSTALL} --upgrade pip && \
+    ${PIP_INSTALL} --upgrade setuptools wheel && \
+    ${PIP_INSTALL} -r ./requirements.txt && \
+    ${PIP_INSTALL} ./
+
+
+# -----------------------------------------------------------------------------
+
+FROM tobiko as tests
+
+RUN ${PIP_INSTALL} -r ./test-requirements.txt
+
+# Run test cases
+ENV OS_LOG_CAPTURE=true
+ENV OS_STDOUT_CAPTURE=true
+ENV OS_STDERR_CAPTURE=true
+ENV OS_TEST_PATH=tobiko/tests/unit
+ENTRYPOINT ./tools/run_tests.py

docker-compose.yml

@@ -0,0 +1,32 @@
+---
+
+version: '3.4'
+services:
+  py3:
+    build:
+      context: .
+      target: tests
+      args:
+        OS_TEST_PATH: ./tests/unit
+  functional:
+    build:
+      context: .
+      target: tests
+      args:
+        OS_TEST_PATH: ./tests/functional
+  scenario:
+    build:
+      context: .
+      target: tests
+      args:
+        OS_TEST_PATH: ./tests/scenario
+  faults:
+    build:
+      context: .
+      target: tests
+      args:
+        OS_TEST_PATH: ./tests/faults
+  infrared:
+    build:
+      context: ./infrared_plugin
+      target: tobiko_plugin

infrared_plugin/Dockerfile

@@ -0,0 +1,61 @@
+# Dockerfile that sets up InfraRed as documented here:
+#  https://infrared.readthedocs.io/en/latest/bootstrap.html#setup
+
+ARG base_image="docker.io/library/centos:8"
+
+FROM "${base_image}" AS infrared
+
+# Install required binary dependencies
+RUN dnf install -y git \
+                   libselinux-python3 \
+                   python3 \
+                   rsync \
+                   which && \
+    alternatives --set python /usr/bin/python3
+
+# Get InfraRed sources with Git
+ARG ir_src_dir=/src/infrared
+ARG ir_git_url=https://github.com/redhat-openstack/infrared.git
+ARG ir_git_refspec=master
+ARG ir_git_remote=origin
+RUN mkdir -p "${ir_src_dir}" && \
+    cd "${ir_src_dir}" &&  \
+    git init && \
+    git remote add "${ir_git_remote}" "${ir_git_url}" && \
+    git fetch "${ir_git_remote}" "${ir_git_refspec}" && \
+    git checkout FETCH_HEAD
+WORKDIR "${ir_src_dir}"
+ENV IR_HOME=/opt/infrared
+
+# Install InfraRed and its default plugins
+# - First installs infrared requirements to workaround the too-may-files
+#   problem related to temporary files removal final step
+# - Then installs infrared itself
+RUN python3 -m pip install --upgrade pip && \
+    python3 -m pip install --upgrade setuptools wheel && \
+    (python3 -m pip install . || python3 -m pip install .) && \
+    infrared plugin list && \
+    (python3 -m pip cache purge || true)
+
+# Creates persistent volume for IR workspaces
+VOLUME ${IR_HOME}/.workspaces
+
+# Sets default entry point
+ENTRYPOINT ["infrared"]
+CMD ["--help"]
+
+
+# -----------------------------------------------------------------------------
+
+FROM infrared as tobiko_plugin
+
+# Add Tobiko plugin directory
+ARG ir_tobiko_plugin=${ir_tobiko_plugin:-/src/infrared-tobiko}
+RUN mkdir -p "${ir_tobiko_plugin}"
+ADD . "${ir_tobiko_plugin}"
+
+# Installs Tobiko plugin
+RUN infrared plugin add "${ir_tobiko_plugin}"
+
+# Sets tobiko as default command
+CMD ["tobiko"]

requirements.txt

@@ -1,7 +1,6 @@
 # Tobiko framework requirements
 
 docker>=4.0                   # Apache-2.0
-podman>=1.6.0                 # Apache-2.0
 fixtures>=3.0.0               # Apache-2.0/BSD
 keystoneauth1>=3.4.0          # Apache-2.0
 Jinja2>=2.8.0                 # BSD
@@ -13,6 +12,7 @@ oslo.log>=3.36.0              # Apache-2.0
 pandas>=0.24.2                # BSD
 paramiko>=2.4.0               # LGPLv2.1
 pbr>=4.0.0                    # Apache-2.0
+podman>=1.6.0                 # Apache-2.0
 python-heatclient>=1.5.0      # Apache-2.0
 python-glanceclient>=2.16.0   # Apache-2.0
 python-neutronclient>=6.7.0   # Apache-2.0

tools/run_tests.py

@@ -1,3 +1,4 @@
+#!/usr/bin/env python3
 # Copyright 2018 Red Hat
 #
 #    Licensed under the Apache License, Version 2.0 (the "License"); you may