[RHOAIENG-11349] - Missing requirements.txt for modelmesh-runtime-ada…

…pter component (opendatahub-io#65)

chore:  Add the requirements.txt file and steps to generate it and correctly configure
        the Konflux build.
	Plus, adapt the Dockerfile to work properly witn Konflux.

Signed-off-by: Spolti <fspolti@redhat.com>

Dockerfile

@@ -16,6 +16,7 @@
 # Stage 1: Create the developer image for the BUILDPLATFORM only
 ###############################################################################
 ARG GOLANG_VERSION=1.21
+ARG BUILD_BASE=develop
 FROM --platform=$BUILDPLATFORM registry.access.redhat.com/ubi8/go-toolset:$GOLANG_VERSION AS develop
 
 ARG PROTOC_VERSION=21.5
@@ -77,6 +78,8 @@ RUN set -eux; \
 WORKDIR /opt/app
 
 COPY go.mod go.sum ./
+# Download dependencies before copying the source so they will be cached
+RUN go mod download
 
 # Install go protoc plugins
 # no required module provides package google.golang.org/grpc/cmd/protoc-gen-go-grpc
@@ -98,8 +101,6 @@ RUN git init && \
     git config --global --add safe.directory "*" && \
     rm -rf .git
 
-# Download dependencies before copying the source so they will be cached
-RUN go mod download
 
 # the ubi/go-toolset image doesn't define ENTRYPOINT or CMD, but we need it to run 'make develop'
 CMD /bin/bash
@@ -108,10 +109,18 @@ CMD /bin/bash
 ###############################################################################
 # Stage 2: Run the go build with BUILDPLATFORM's native go compiler
 ###############################################################################
-FROM --platform=$BUILDPLATFORM develop AS build
+FROM --platform=$BUILDPLATFORM $BUILD_BASE AS build
 
 LABEL image="build"
 
+USER root
+
+# needed for konflux as the previous stage is not used
+WORKDIR /opt/app
+COPY go.mod go.sum ./
+# Download dependencies before copying the source so they will be cached
+RUN go mod download
+
 # Copy the source
 COPY . ./
 
@@ -146,7 +155,7 @@ USER root
 # install python to convert keras to tf
 # NOTE: tensorflow not supported on PowerPC (ppc64le) or System Z (s390x) https://github.com/tensorflow/tensorflow/issues/46181
 RUN --mount=type=cache,target=/root/.cache/microdnf:rw \
-    microdnf install --setopt=cachedir=/root/.cache/microdnf \
+    microdnf install --setopt=cachedir=/root/.cache/microdnf --setopt=ubi-8-appstream-rpms.module_hotfixes=1 \
        gcc \
        gcc-c++ \
        python38-devel \
@@ -157,17 +166,11 @@ RUN --mount=type=cache,target=/root/.cache/microdnf:rw \
 
 # need to upgrade pip and install wheel before installing grpcio, before installing tensorflow on aarch64
 # use caching to speed up multi-platform builds
+COPY requirements.txt requirements.txt
 ENV PIP_CACHE_DIR=/root/.cache/pip
 RUN --mount=type=cache,target=/root/.cache/pip \
-    pip install --upgrade pip && \
-    pip install wheel && \
-    pip install grpcio && \
-    # pin to 3.10.0 to avoid error: libhdf5.so: cannot open shared object file: No such file or directory \
-    # if not version is set, it will install the 3.11.0 version which, seems that does not have the h5py dependencies \
-    # for arm yet.
-    pip install h5py==3.10.0 && \
-    pip install tensorflow
-
+    pip install -r requirements.txt
+RUN rm -rfv requirements.txt
 USER ${USER}
 
 # Add modelmesh version

Makefile

@@ -27,7 +27,7 @@ all: build
 .PHONY: build
 ## Build runtime Docker image
 build:
-	./scripts/build_docker.sh --target runtime
+	./scripts/build_docker.sh --target builder --target runtime
 
 .PHONY: build.develop
 ## Build developer container image

README.md

@@ -194,3 +194,33 @@ modelmesh-controller-64f5c8d6d6-k6rzc            kserve/modelmesh-controller:lat
 modelmesh-serving-mlserver-1.x-84884c6849-s8dw6  kserve/rest-proxy:latest, seldonio/mlserver:1.3.2, your-docker-userid/modelmesh-runtime-adapter:dev, kserve/modelmesh:latest
 modelmesh-serving-mlserver-1.x-84884c6849-xpdw4  kserve/rest-proxy:latest, seldonio/mlserver:1.3.2, your-docker-userid/modelmesh-runtime-adapter:dev, kserve/modelmesh:latest
 ```
+
+# Konflux build system Files
+
+This directory holds the requirements.txt file use in the Konflux builds to pre-fetch the required packages.
+
+Here are two files that we need to keep:
+
+- **requirements.txt**: is the result of the `pip freeze` command (see example below).
+
+## How to update the requirements.txt file
+
+Once the final container is built, you can access it:
+
+```bash
+podman run <modelmesh-runtime-adapter-container-name> sh -c 'pip freeze'
+```
+
+Note, for `tensorflow-io-gcs-filesystem` it must be pinned to **0.34.0** manually after generating the `requirements.txt` file.`
+
+Then commit the changes and push.
+
+# Konflux configuration
+
+Build configuration, it requires the build be configured as follows:
+
+```yaml
+- name: prefetch-input
+  value: |
+    [{"type": "gomod"}, {"type": "rpm"}, {"type": "pip", "path": ".", "requirements_files": ["requirements.txt"], "allow_binary": "true"}]
+```

requirements.txt

@@ -0,0 +1,45 @@
+absl-py==2.1.0
+astunparse==1.6.3
+cachetools==5.5.0
+certifi==2024.8.30
+charset-normalizer==3.3.2
+flatbuffers==24.3.25
+gast==0.4.0
+google-auth==2.34.0
+google-auth-oauthlib==1.0.0
+google-pasta==0.2.0
+grpcio==1.66.1
+# pin to 3.10.0 to avoid error: libhdf5.so: cannot open shared object file: No such file or directory \
+# if not version is set, it will install the 3.11.0 version which, seems that does not have the h5py dependencies \
+# for arm yet.
+h5py==3.10.0
+idna==3.8
+importlib-metadata==8.4.0
+keras==2.13.1
+libclang==18.1.1
+Markdown==3.7
+MarkupSafe==2.1.5
+numpy==1.24.3
+oauthlib==3.2.2
+opt-einsum==3.3.0
+packaging==24.1
+protobuf==4.25.4
+pyasn1==0.6.0
+pyasn1-modules==0.4.0
+requests==2.32.3
+requests-oauthlib==2.0.0
+rsa==4.9
+six==1.16.0
+tensorboard==2.13.0
+tensorboard-data-server==0.7.2
+tensorflow==2.13.1
+tensorflow-estimator==2.13.0
+# Note, for `tensorflow-io-gcs-filesystem` it must be pinned to 0.34.0 manually after generating the `requirements.txt` file.
+tensorflow-io-gcs-filesystem==0.34.0
+termcolor==2.4.0
+typing-extensions==4.5.0
+urllib3==2.2.2
+werkzeug==3.0.4
+wheel==0.44.0
+wrapt==1.16.0
+zipp==3.20.1