01-Create-Dockerfile.md

Create the dockerfile

In this session, we are going to be deploying an application within a Docker container. Before we can deploy our app, we need to begin setting up a foundation to make changes to.

Exercise: Add Dockerfile

1. Create a new branch called Docker

2. In the root of the repository, create a new file named: Dockerfile

3. Copy and paste the following code snippet into the new file:

   ⚠️ NOTE: Update the orgname and reponame variables to your organization and repository names.

   #########################################
   #########################################
   ### Dockerfile to run some Some Build ###
   #########################################
   #########################################
   
   # This is a copy of the GitHub Action runner
   FROM myoung34/github-runner:latest
   
   #########################################
   # Variables #
   #########################################
   ARG orgname="organization name"
   ARG reponame="repository name"
   
   #########################################
   # Label the instance and set maintainer #
   #########################################
   LABEL com.github.actions.name="Some Image" \
         com.github.actions.description="Its a build image" \
         com.github.actions.icon="code" \
         com.github.actions.color="red" \
         maintainer="GitHub DevOps <[email protected]>" \
         org.opencontainers.image.authors="GitHub DevOps <[email protected]>" \
         org.opencontainers.image.url="https://github.com/${orgname}/${reponame}" \
         org.opencontainers.image.source="https://github.com/${orgname}/${reponame}" \
         org.opencontainers.image.documentation="https://github.com/${orgname}/${reponame}" \
         org.opencontainers.image.vendor="GitHub" \
         org.opencontainers.image.description="Its a build image"
   
   ########################################
   # Copy dependencies files to container #
   ########################################
   COPY dependencies/* /
   
   # ################################
   # # Installs python dependencies #
   # ################################
   # RUN pip3 install --no-cache-dir pipenv
   # # Bug in hadolint thinks pipenv is pip
   # # hadolint ignore=DL3042
   # RUN pipenv install --clear --system
   
   # ####################
   # # Run NPM Installs #
   # ####################
   # RUN npm config set package-lock false \
   # && npm config set loglevel error \
   # && npm --no-cache install
   # # Add node packages to path
   # ENV PATH="/node_modules/.bin:${PATH}"
   
   # ##############################
   # # Installs ruby dependencies #
   # ##############################
   # RUN bundle install
   
   ######################
   # Make the directory #
   ######################
   RUN mkdir -p /action/lib
   
   #############################
   # Copy scripts to container #
   #############################
   COPY library /action/lib
   
   ######################
   # Set the entrypoint #
   ######################
   ENTRYPOINT ["/action/lib/entrypoint.sh"]

4. Commit the file.

5. Open a pull request and merge the Docker branch into the main branch.