[POP-7251] Add entrypoint for using env vars to init dbt profile (#2)

Dockerfile

@@ -1,5 +1,8 @@
 FROM python:3.8-slim-bullseye
 
+ENV DBT_PROFILES_DIR=/.dbt
+ENV AWS_SHARED_CREDENTIALS_FILE=/.dbt/aws_credentials
+
 ARG UID=1000
 ARG GID=1000
 
@@ -10,9 +13,15 @@ RUN apt-get update \
     libpq-dev \
     git \
   && rm -rf /var/lib/apt/lists/ \
-  && groupadd -f -g ${GID} -r dbt && useradd -g dbt -l -m -r -u ${UID} dbt \
   && python3 -m pip install -U wheel
 
+ADD entrypoint.sh /entrypoint.sh
+
+RUN chmod +x /entrypoint.sh \
+  && groupadd -f -g ${GID} -r dbt && useradd -g dbt -l -m -r -u ${UID} dbt \
+  && mkdir /.dbt \
+  && chown dbt:dbt /.dbt
+
 ARG REQUIREMENTS_FILE
 ARG DBT_VERSION
 
@@ -23,4 +32,5 @@ RUN  python3 -m pip install -r /tmp/requirements.txt && rm -f /tmp/requirements.
 USER dbt
 WORKDIR /dbt
 
+ENTRYPOINT ["/entrypoint.sh"]
 CMD ["dbt", "debug"]

bin/build.sh

@@ -23,7 +23,12 @@ else
     image_name="dbt-${adapter}"
 fi
 
+tag="ghcr.io/popsql/${image_name}:${version}"
+
 docker build \
     --build-arg REQUIREMENTS_FILE="${requirements_file}" \
-    --tag "ghcr.io/popsql/${image_name}:${version}" \
+    --build-arg DBT_VERSION="${version}" \
+    --tag "${tag}" \
     "${BASE_DIR}"
+
+echo "Successfully built image ${tag}"

entrypoint.sh

@@ -0,0 +1,20 @@
+#!/usr/bin/env bash
+
+if [ -n "${DBT_PROFILES}" ]; then
+  echo "${DBT_PROFILES}" > /.dbt/profiles.yml
+  if [ -n "${AWS_CREDENTIALS}" ]; then
+    echo "${AWS_CREDENTIALS}" > /.dbt/aws_credentials
+  fi
+  if [ -n "${BQ_KEYFILE}" ]; then
+    echo "${BQ_KEYFILE}" > /.dbt/bq_keyfile.json
+  fi
+else
+  if [ -f ~/.dbt/profiles.yml ]; then
+    cp ~/.dbt/profiles.yml /.dbt/profiles.yml
+  fi
+  if [ -f ~/.aws/credentials ]; then
+    cp ~/.aws/credentials /.dbt/aws_credentials
+  fi
+fi
+
+exec "$@"