More generic image type for OCI-compliant container technologies (#802)

It's a more generic term and applicable to alternatives of Docker, such
as Podman or other OCI-compliant technologies.

---------

Signed-off-by: Yuan Tang <terrytangyuan@gmail.com>

llama_stack/distribution/build_container.sh

@@ -13,7 +13,7 @@ PYPI_VERSION=${PYPI_VERSION:-}
 BUILD_PLATFORM=${BUILD_PLATFORM:-}
 
 if [ "$#" -lt 4 ]; then
-  echo "Usage: $0 <build_name> <docker_base> <pip_dependencies> [<special_pip_deps>]" >&2
+  echo "Usage: $0 <build_name> <container_base> <pip_dependencies> [<special_pip_deps>]" >&2
   echo "Example: $0 my-fastapi-app python:3.9-slim 'fastapi uvicorn' " >&2
   exit 1
 fi
@@ -24,7 +24,7 @@ set -euo pipefail
 
 build_name="$1"
 image_name="distribution-$build_name"
-docker_base=$2
+container_base=$2
 build_file_path=$3
 host_build_dir=$4
 pip_dependencies=$5
@@ -36,14 +36,14 @@ NC='\033[0m' # No Color
 
 SCRIPT_DIR=$(dirname "$(readlink -f "$0")")
 REPO_DIR=$(dirname $(dirname "$SCRIPT_DIR"))
-DOCKER_BINARY=${DOCKER_BINARY:-docker}
-DOCKER_OPTS=${DOCKER_OPTS:-}
+CONTAINER_BINARY=${CONTAINER_BINARY:-docker}
+CONTAINER_OPTS=${CONTAINER_OPTS:-}
 
 TEMP_DIR=$(mktemp -d)
 
-add_to_docker() {
+add_to_container() {
   local input
-  output_file="$TEMP_DIR/Dockerfile"
+  output_file="$TEMP_DIR/Containerfile"
   if [ -t 0 ]; then
     printf '%s\n' "$1" >>"$output_file"
   else
@@ -53,9 +53,9 @@ add_to_docker() {
 }
 
 # Update and install UBI9 components if UBI9 base image is used
-if [[ $docker_base == *"registry.access.redhat.com/ubi9"* ]]; then
-  add_to_docker << EOF
-FROM $docker_base
+if [[ $container_base == *"registry.access.redhat.com/ubi9"* ]]; then
+  add_to_container << EOF
+FROM $container_base
 WORKDIR /app
 
 RUN microdnf -y update && microdnf install -y iputils net-tools wget \
@@ -64,8 +64,8 @@ RUN microdnf -y update && microdnf install -y iputils net-tools wget \
 
 EOF
 else
-  add_to_docker << EOF
-FROM $docker_base
+  add_to_container << EOF
+FROM $container_base
 WORKDIR /app
 
 RUN apt-get update && apt-get install -y \
@@ -82,7 +82,7 @@ fi
 # Add pip dependencies first since llama-stack is what will change most often
 # so we can reuse layers.
 if [ -n "$pip_dependencies" ]; then
-  add_to_docker << EOF
+  add_to_container << EOF
 RUN pip install --no-cache $pip_dependencies
 EOF
 fi
@@ -90,7 +90,7 @@ fi
 if [ -n "$special_pip_deps" ]; then
   IFS='#' read -ra parts <<<"$special_pip_deps"
   for part in "${parts[@]}"; do
-    add_to_docker <<EOF
+    add_to_container <<EOF
 RUN pip install --no-cache $part
 EOF
   done
@@ -108,16 +108,16 @@ if [ -n "$LLAMA_STACK_DIR" ]; then
   # Install in editable format. We will mount the source code into the container
   # so that changes will be reflected in the container without having to do a
   # rebuild. This is just for development convenience.
-  add_to_docker << EOF
+  add_to_container << EOF
 RUN pip install --no-cache -e $stack_mount
 EOF
 else
   if [ -n "$TEST_PYPI_VERSION" ]; then
     # these packages are damaged in test-pypi, so install them first
-    add_to_docker << EOF
+    add_to_container << EOF
 RUN pip install fastapi libcst
 EOF
-    add_to_docker << EOF
+    add_to_container << EOF
 RUN pip install --no-cache --extra-index-url https://test.pypi.org/simple/ \
   llama-models==$TEST_PYPI_VERSION llama-stack-client==$TEST_PYPI_VERSION llama-stack==$TEST_PYPI_VERSION
 
@@ -128,7 +128,7 @@ EOF
     else
       SPEC_VERSION="llama-stack"
     fi
-    add_to_docker << EOF
+    add_to_container << EOF
 RUN pip install --no-cache $SPEC_VERSION
 EOF
   fi
@@ -140,14 +140,14 @@ if [ -n "$LLAMA_MODELS_DIR" ]; then
     exit 1
   fi
 
-  add_to_docker << EOF
+  add_to_container << EOF
 RUN pip uninstall -y llama-models
 RUN pip install --no-cache $models_mount
 
 EOF
 fi
 
-add_to_docker << EOF
+add_to_container << EOF
 
 # This would be good in production but for debugging flexibility lets not add it right now
 # We need a more solid production ready entrypoint.sh anyway
@@ -156,8 +156,8 @@ ENTRYPOINT ["python", "-m", "llama_stack.distribution.server.server", "--templat
 
 EOF
 
-printf "Dockerfile created successfully in $TEMP_DIR/Dockerfile\n\n"
-cat $TEMP_DIR/Dockerfile
+printf "Containerfile created successfully in $TEMP_DIR/Containerfile\n\n"
+cat $TEMP_DIR/Containerfile
 printf "\n"
 
 mounts=""
@@ -170,7 +170,7 @@ fi
 
 if command -v selinuxenabled &>/dev/null && selinuxenabled; then
   # Disable SELinux labels -- we don't want to relabel the llama-stack source dir
-  DOCKER_OPTS="$DOCKER_OPTS --security-opt label=disable"
+  CONTAINER_OPTS="$CONTAINER_OPTS --security-opt label=disable"
 fi
 
 # Set version tag based on PyPI version
@@ -200,7 +200,7 @@ else
 fi
 
 set -x
-$DOCKER_BINARY build $DOCKER_OPTS $PLATFORM -t $image_tag -f "$TEMP_DIR/Dockerfile" "$REPO_DIR" $mounts
+$CONTAINER_BINARY build $CONTAINER_OPTS $PLATFORM -t $image_tag -f "$TEMP_DIR/Containerfile" "$REPO_DIR" $mounts
 
 # clean up tmp/configs
 set +x