Init this thing

.drone.yml

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+---
+kind: pipeline
+name: push container to docker hub
+steps:
+  - name: build container
+    image: plugins/docker
+    settings:
+      username:
+        from_secret: docker_reg_username
+      password:
+        from_secret: docker_reg_passwd
+      repo: decentral1se/molecule
+      tags: latest
+trigger:
+  branch:
+    - main

Dockerfile

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+# This is a multi-stage build which requires Docker 17.05 or higher
+FROM docker.io/alpine:edge as molecule-builder
+
+WORKDIR /usr/src/molecule
+
+# WARNING: Reasons not to add edge/testing:
+# * Breaks security scanning due to https://github.com/quay/clair/issues/901
+# * Unreliable builds, as alpinelinux CDN is unreliable for edge, returning 404
+#   quite often.
+# edge/testing needed for: py3-arrow
+RUN apk add -v --progress --update --no-cache \
+docker-py \
+gcc \
+git \
+libffi-dev \
+libvirt \
+libvirt-dev \
+make \
+musl-dev \
+openssl-dev \
+py3-bcrypt \
+py3-botocore \
+py3-certifi \
+py3-cffi \
+py3-chardet \
+py3-click \
+py3-colorama \
+py3-cryptography \
+py3-distlib \
+py3-docutils \
+py3-flake8 \
+py3-future \
+py3-idna \
+py3-jinja2 \
+py3-libvirt \
+py3-markupsafe \
+py3-mccabe \
+py3-netifaces \
+py3-paramiko \
+py3-pbr \
+py3-pip \
+py3-pluggy \
+py3-psutil \
+py3-ptyprocess \
+py3-py \
+py3-pycodestyle \
+py3-pynacl \
+py3-pytest \
+py3-requests \
+py3-ruamel \
+py3-setuptools \
+py3-simplejson \
+py3-urllib3 \
+py3-virtualenv \
+py3-websocket-client \
+py3-yaml \
+python3 \
+python3-dev
+
+ENV MOLECULE_PLUGINS="\
+molecule-hetznercloud
+"
+
+# https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=917006
+RUN python3 -m pip install -U wheel pip setuptools
+
+ADD . .
+
+RUN \
+python3 -m pip wheel \
+-w dist \
+molecule testinfra ${MOLECULE_PLUGINS}
+
+RUN ls -1 dist/
+
+# ✄---------------------------------------------------------------------
+# This is an actual target container:
+
+FROM alpine:edge
+LABEL maintainer="decentral1se <decentral1se@disroot.org>"
+
+ENV PACKAGES="\
+docker \
+git \
+openssh-client \
+docker-py \
+libvirt \
+rsync \
+py3-bcrypt \
+py3-botocore \
+py3-certifi \
+py3-cffi \
+py3-chardet \
+py3-click \
+py3-colorama \
+py3-cryptography \
+py3-docutils \
+py3-flake8 \
+py3-idna \
+py3-jinja2 \
+py3-mccabe \
+py3-netifaces \
+py3-paramiko \
+py3-pbr \
+py3-pip \
+py3-pluggy \
+py3-psutil \
+py3-ptyprocess \
+py3-py \
+py3-pycodestyle \
+py3-pynacl \
+py3-pytest \
+py3-requests \
+py3-ruamel \
+py3-setuptools \
+py3-urllib3 \
+py3-virtualenv \
+py3-websocket-client \
+python3 \
+"
+
+ENV BUILD_DEPS="\
+gcc \
+libc-dev \
+libvirt-dev \
+make \
+"
+
+ENV PIP_INSTALL_ARGS="\
+--only-binary :all: \
+--no-index \
+-f /usr/src/molecule/dist \
+"
+
+ENV MOLECULE_PLUGINS="\
+molecule-hetznercloud \
+"
+
+RUN \
+apk add --update --no-cache \
+${BUILD_DEPS} ${PACKAGES} \
+&& apk del --no-cache ${BUILD_DEPS} \
+&& rm -rf /root/.cache
+
+COPY --from=molecule-builder \
+/usr/src/molecule/dist \
+/usr/src/molecule/dist
+
+RUN \
+python3 -m pip install \
+${PIP_INSTALL_ARGS} \
+molecule testinfra ${MOLECULE_PLUGINS} && \
+molecule --version && \
+molecule drivers && \
+pip check
+
+ENV SHELL /bin/bash

README.md

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+# molecule-image
+
+[Because](https://github.com/ansible-community/molecule/commit/ba6496563bbe360693a409657c9c1515df6482eb).