# Single Container Planning

# Sept 16, 2022

**Goal:** Enable users of `pulp/pulp` container image to scale their Pulp deployment from a single container running all the services to many containers running individual services.

Problems with specialized images:
- it's hard to ensure that you are running the same code in all of the specialized containers

### AI

* the operator to rework the container build process to not have ansible be used, instead a documented docker file
* document the dockerfile for the single container image
* https://github.com/pulp/pulp-oci-images/issues/269
* move the operator container build files to the pulp-oci-images repo

### Possible Followon Steps
* bmbouter to file issue to remove "not production ready" language and list single container as a usage method for pulp
* rename the single container image to be 'all-in-one'
* rename the operator image to be the 'pulp' image

# Oct 20, 2022

PRs & Successful CI runs:
* Modify the images: https://github.com/pulp/pulp-oci-images/pull/311/checks
* Modify the images and upload to quay.io/mikedep333/ : https://github.com/mikedep333/pulp-oci-images/pull/2/checks
* Run the modified images with pulp-operator: https://github.com/pulp/pulp-operator/pull/698/checks

* Complication:
* single container "pulp:latest" has stable set of plugins, at stable versions
* "pulp:nightly" is the alternate
* Instructions default to "pulp:latest"
* Operated "pulp:latest" have development set of plugins, at development versions
* "pulp:stable" is the alternate
* default of the operator is "pulp:stable"
solution: Both pulp and pulp-minimal will be tagged as "stable", which will also be called "latest". The alternative will be "nightly"
# Sept 29, 2022

## Proposed plan

### Current image layers (operated):
* pulp/base (1. installs RPMs for pulp 2. pip installs pulpcore + optional deps for certguard 3. creates dirs/symlinks 4. collects static 5. **copies scripts (ENTRYPOINT + commands + helpers)** 6. **sets ENTRYPOINT to pulp-common-entrypoint.sh**)
* pulp/pulp (1. pip installs plugins)
* pulp/pulp-web (1. copies snippets and UI from "pulp" onto the image "docker.io/centos/nginx-116-centos7:1.16" 2. sets CMD to nginx)
* pulp/galaxy (1. pip installs plugins 2. collects static)
* pulp/galaxy-web (1. copies snippets and UI from "galaxy" onto the image "docker.io/centos/nginx-116-centos7:1.16" 2. sets CMD to nginx)

### Current image layers (S6)
* pulp/pulp_ci_centos (1. installs/configures S6 2. installs RPMs for pulp + nginx + postgres + redis 3. pip installs setproctitle 4. configures podman 5. creates dirs/symlinks 6. **copies files (helper scripts, s6 config/scripts, nginx.conf, ssl config)** 7. **sets ENTRYPOINT to S6** 8. **exposes port 80**)
* pulp/pulp (1. pip installs pulpcore + plugins + requests 2. symlinks snippets)
* pulp/pulp-galaxy-ng (1. pip installs pulpcore + galaxy_ng + requests 2. symlinks snippets)

### Proposed image layers
* pulp/base (1. installs RPMs for pulp 2. pip installs setproctitle + optional deps for certguard 3. creates dirs/symlinks 4. configures podman 5. **copies operated scripts** 6. **sets ENTRYPOINT to pulp-common-entrypoint.sh**))
* pulp/pulp-minimal (1. pip installs pulpcore + plugins, 2. collects static)
* pulp/pulp-web (1. copies snippets from "pulp-minimal" onto the image "docker.io/centos/nginx-116-centos7:1.16" 2. sets CMD to nginx)
* pulp/galaxy-minimal (also pulp/galaxy) (1. pulp installs galaxy 2. collects static)
* pulp/galaxy-web (1. copies snippets and UI from "galaxy" onto the image "docker.io/centos/nginx-116-centos7:1.16" 2. sets CMD to nginx)
* pulp/pulp_ci_centos (1. installs/configures S6 2. installs RPMs for nginx + postgres + redis 3. **Copies s6-used files (helper scripts, s6 config/scripts, nginx.conf, ssl config)** **4. Sets CMD to S6** 5. **exposes port 80**)
* pulp/pulp (1. pip installs pulpcore + plugins + requests 2. symlinks snippets 3. collects static)
* pulp/pulp-galaxy-ng (1. pip installs pulpcore + galaxy_ng + requests 2. symlinks snippets 3. collects static)

# Sept 28, 2022

* Mike will contribute the S6 layer to the "operator image" as part of this ticket
* https://github.com/pulp/pulp-oci-images/issues/287
* ^ has prio-list on it
* Will have a followup call tomorrow to align with @fao and @humberto too