Docker deploy

[jmgrady]

Create scripts to deploy TheCombine as a set of Docker Containers

Closes #344, #378, #427, #437

This PR implements the Ansible playbooks to deploy TheCombine to QA & Production machines with TheCombine running inside docker containers. ./docs/docker_deploy/README.md contains the instructions for using the playbooks as well as a description of their design.

Caveat: These playbooks only work for the QA server or the live server; NUCs are not supported yet.

---

This change is 

[johnthagen]

---

docker_deploy/roles/combine_config/templates/docker-compose.yml.j2, line 20 at r11 (raw file):

Previously, johnthagen wrote…

Resolved in 8443cc1

Done

[johnthagen]

Reviewed 3 of 3 files at r4, 2 of 2 files at r5, 1 of 39 files at r6, 2 of 8 files at r12.
Reviewable status: 17 of 39 files reviewed, 1 unresolved discussion (waiting on @jmgrady and @johnthagen)

[johnthagen]

---

docker_deploy/roles/package_install/defaults/main.yml, line 5 at r13 (raw file):

required_packages:
  - python3
  - python3-pip

What is pip used for in the deployment environment? Are there extra PyPI packages that are needed outside of what comes with Ansible?

[johnthagen]

---

docker_deploy/vars/config_common.yml, line 11 at r13 (raw file):

frontend_env_dir: "{{ source_dir }}"

production_override_yaml: docker-compose.prod.yml

Now that we are templating out the docker-compose.yml file. Can we remove this .prod override?

[johnthagen]

Reviewed 14 of 39 files at r6, 1 of 1 files at r8, 4 of 8 files at r12, 3 of 3 files at r13, 3 of 3 files at r14.
Reviewable status: all files reviewed, 2 unresolved discussions (waiting on @jmgrady)

[jmgrady]

Reviewable status: 36 of 39 files reviewed, 1 unresolved discussion (waiting on @johnthagen)

---

docker_deploy/vars/config_common.yml, line 11 at r13 (raw file):

Previously, johnthagen wrote…

Now that we are templating out the docker-compose.yml file. Can we remove this .prod override?

Done.

[johnthagen]

Reviewed 1 of 1 files at r15, 2 of 2 files at r16.
Reviewable status: complete! all files reviewed, all discussions resolved