feat(containers): Remove reliance on chained builds

**warning: this is only a partial change with 2024a changes included to solicit initial feedback on approach**

Commit contains following changes:

- Refactors all `Dockerfile`s to to be "self-contained" - not rely on any "build chains" for internal images
    - please note in the final form of this PR - many intermediate stages will be combined... this current form makes it easier to understand how the `Dockerfile`s present in the "build chain" are being combined
        - long term - we'd expect the following stages: `base`, `base-<accelerator>` (if applicable), `<final>`
- `Dockerfile` file now has a file extension/suffix that indicates CPU or accelerator
- `LABEL` directives now should be consistent/accurate
    - this probably needs a little more attention
- `base/` directory removed as its no longer relevant/required
- Makefile updated to handle support better across releases
    - _read: MOWR variables_
- `wheel` / `setuptools` explicitly added to `runtime-` images `Pipfile`
- `pytorch` `Makefile` targets now contain `cuda-` prefix
- `ENV` directive in `Dockerfile` now properly uses `=` (vs. whitespace)
- change in `buildinputs` to pull file paths from the terminal layer
    - this change particularly needs refined - but its "crude yet effective" in its current form

Related-to: https://issues.redhat.com/browse/RHOAIENG-19048

2024a/codeserver/ubi9-python-3.9/Dockerfile → 2024a/codeserver/ubi9-python-3.9/Dockerfile.cpu

@@ -1,6 +1,35 @@
-ARG BASE_IMAGE
-FROM ${BASE_IMAGE}
 
+####################
+# base             #
+####################
+FROM registry.access.redhat.com/ubi9/python-39:latest AS base
+
+WORKDIR /opt/app-root/bin
+
+# OS Packages needs to be installed as root
+USER root
+
+# Install usefull OS packages
+RUN dnf install -y mesa-libGL && dnf clean all && rm -rf /var/cache/yum
+
+# Other apps and tools installed as default user
+USER 1001
+
+# Install micropipenv to deploy packages from Pipfile.lock
+RUN pip install --no-cache-dir -U "micropipenv[toml]"
+
+# Install the oc client
+RUN curl -L https://mirror.openshift.com/pub/openshift-v4/$(uname -m)/clients/ocp/stable/openshift-client-linux.tar.gz \
+        -o /tmp/openshift-client-linux.tar.gz && \
+    tar -xzvf /tmp/openshift-client-linux.tar.gz oc && \
+    rm -f /tmp/openshift-client-linux.tar.gz
+
+####################
+# codeserver       #
+####################
+FROM base AS codeserver
+
+ARG CODESERVER_SOURCE_CODE=codeserver/ubi9-python-3.9
 ARG CODESERVER_VERSION=v4.22.0
 
 LABEL name="odh-notebook-code-server-ubi9-python-3.9" \
@@ -17,16 +46,6 @@ USER 0
 
 WORKDIR /opt/app-root/bin
 
-# Install usefull packages from Pipfile.lock
-COPY Pipfile.lock ./
-
-# Install packages and cleanup
-RUN echo "Installing softwares and packages" && \
-    micropipenv install && \
-    rm -f ./Pipfile.lock && \
-    # Fix permissions to support pip in Openshift environments \
-    chmod -R g+w /opt/app-root/lib/python3.9/site-packages && \
-    fix-permissions /opt/app-root -P
 
 # Install usefull OS packages
 RUN dnf install -y jq git-lfs libsndfile && dnf clean all && rm -rf /var/cache/yum
@@ -35,11 +54,7 @@ RUN dnf install -y jq git-lfs libsndfile && dnf clean all && rm -rf /var/cache/y
 RUN yum install -y "https://github.com/coder/code-server/releases/download/${CODESERVER_VERSION}/code-server-${CODESERVER_VERSION/v/}-amd64.rpm" && \
     yum -y clean all --enablerepo='*'
 
-# Change ownership of relevant directories
-RUN chmod -R g+w /opt/app-root/lib/python3.9/site-packages && \
-    fix-permissions /opt/app-root -P
-
-COPY --chown=1001:0 utils utils/
+COPY --chown=1001:0 ${CODESERVER_SOURCE_CODE}/utils utils/
 
 # Create and intall the extensions though build-time on a temporary directory. Later this directory will copied on the `/opt/app-root/src/.local/share/code-server/extensions` via run-code-server.sh file when it starts up. 
 RUN mkdir -p /opt/app-root/extensions-temp && \
@@ -65,10 +80,10 @@ RUN yum install -y https://download.fedoraproject.org/pub/epel/epel-release-late
     rpm -V $INSTALL_PKGS && \
     yum -y clean all --enablerepo='*'
 
-COPY --chown=1001:0 supervisord/supervisord.conf /etc/supervisor/conf.d/supervisord.conf
+COPY --chown=1001:0 ${CODESERVER_SOURCE_CODE}/supervisord/supervisord.conf /etc/supervisor/conf.d/supervisord.conf
 
 # Copy extra files to the image.
-COPY nginx/root/ /
+COPY ${CODESERVER_SOURCE_CODE}/nginx/root/ /
 
 # Changing ownership and user rights to support following use-cases:
 # 1) running container on OpenShift, whose default security model
@@ -105,19 +120,30 @@ RUN sed -i -f ${NGINX_APP_ROOT}/nginxconf.sed ${NGINX_CONF_PATH} && \
     chown -R 1001:0 /opt/app-root/src/.config/code-server
 
 ## Configure nginx
-COPY nginx/serverconf/ /opt/app-root/etc/nginx.default.d/
-COPY nginx/httpconf/ /opt/app-root/etc/nginx.d/
-COPY nginx/api/ /opt/app-root/api/
+COPY ${CODESERVER_SOURCE_CODE}/nginx/serverconf/ /opt/app-root/etc/nginx.default.d/
+COPY ${CODESERVER_SOURCE_CODE}/nginx/httpconf/ /opt/app-root/etc/nginx.d/
+COPY ${CODESERVER_SOURCE_CODE}/nginx/api/ /opt/app-root/api/
 
 # Launcher
-COPY --chown=1001:0 run-code-server.sh run-nginx.sh ./
+COPY --chown=1001:0 ${CODESERVER_SOURCE_CODE}/run-code-server.sh ${CODESERVER_SOURCE_CODE}/run-nginx.sh ./
 
-ENV SHELL /bin/bash
+ENV SHELL=/bin/bash
 
 ENV PYTHONPATH=/opt/app-root/bin/python3
 
-WORKDIR /opt/app-root/src
-
 USER 1001
 
+
+# Install usefull packages from Pipfile.lock
+COPY ${CODESERVER_SOURCE_CODE}/Pipfile.lock ./
+
+# Install packages and cleanup
+RUN echo "Installing softwares and packages" && \
+    micropipenv install && \
+    rm -f ./Pipfile.lock && \
+    # Fix permissions to support pip in Openshift environments \
+    chmod -R g+w /opt/app-root/lib/python3.9/site-packages && \
+    fix-permissions /opt/app-root -P
+
+WORKDIR /opt/app-root/src
 CMD ["/opt/app-root/bin/run-code-server.sh"]