feat(postgres): Reduce Postgres image size (#420)

* remove uneeded stuff, move java only for the docs step

* wip

* wip

* wip

* wip

Author: Mr-Leshiy

earthly/postgresql/Earthfile

@@ -10,46 +10,14 @@ IMPORT ../java AS java
 postgres-base:
     FROM postgres:16.4-bookworm
 
-    ARG SCHEMASPY_VERSION=6.2.4
-    ARG POSTGRESQL_JDBC_VERSION=42.7.4
-
     WORKDIR /root
 
     # Install necessary packages
     # Expand this list as needed, rather than adding more tools in later containers.
     RUN apt-get update && apt-get install -y \
-        bash \
-        build-essential \
-        clang \
-        cmake \
-        colordiff \
-        findutils \
-        fontconfig \
-        fonts-liberation2 \
-        graphviz \
-        libssl-dev \
-        mold \
-        openssl \
-        pkgconf \
-        python3-pip \
         python3-rich \
-        python3-psycopg \
-        ripgrep \
-        wget \
-        pipx \
         && rm -rf /var/lib/apt/lists/*
 
-    # Use the cached java installation from the java Earthfile
-    DO java+COPY_DEPS
-
-    # Install SQLFluff - Check
-    ENV PATH="/root/.local/bin:${PATH}"
-    RUN pipx install sqlfluff==3.1.1 && sqlfluff version
-
-    # Install SchemaSpy and required Postgresql JDBC driver
-    RUN wget -O /bin/postgresql.jar https://jdbc.postgresql.org/download/postgresql-${POSTGRESQL_JDBC_VERSION}.jar
-    RUN wget -O /bin/schemaspy.jar https://github.com/schemaspy/schemaspy/releases/download/v${SCHEMASPY_VERSION}/schemaspy-${SCHEMASPY_VERSION}.jar
-
     # Get refinery
     COPY rust-tools+tool-refinery/refinery /bin
 
@@ -68,6 +36,17 @@ postgres-base:
     SAVE ARTIFACT /scripts /scripts
     SAVE ARTIFACT /templates /templates
 
+sqlfluff-base:
+    FROM +postgres-base
+    
+    RUN apt-get update && apt-get install -y \
+        colordiff \
+        pipx
+
+    # Install SQLFluff - Check
+    ENV PATH="/root/.local/bin:${PATH}"
+    RUN pipx install sqlfluff==3.1.1 && sqlfluff version
+
 # Common build setup steps.
 # Arguments:
 #   sqlfluff_cfg - REQUIRED - Location of repos .sqlfluff configuration file.
@@ -115,9 +94,22 @@ DOCS:
 
     ARG migrations=./migrations
     ARG refinery_toml=./refinery.toml
+    ARG SCHEMASPY_VERSION=6.2.4
+    ARG POSTGRESQL_JDBC_VERSION=42.7.4
 
     FROM +postgres-base
 
+    RUN apt-get update && apt-get install -y \
+        graphviz \
+        wget
+
+    # Use the cached java installation from the java Earthfile
+    DO java+COPY_DEPS
+
+    # Install SchemaSpy and required Postgresql JDBC driver
+    RUN wget -O /bin/postgresql.jar https://jdbc.postgresql.org/download/postgresql-${POSTGRESQL_JDBC_VERSION}.jar
+    RUN wget -O /bin/schemaspy.jar https://github.com/schemaspy/schemaspy/releases/download/v${SCHEMASPY_VERSION}/schemaspy-${SCHEMASPY_VERSION}.jar
+
     USER postgres:postgres
     WORKDIR /docs
 
@@ -133,7 +125,7 @@ DOCS:
 # Linter checks for sql files
 CHECK:
     FUNCTION
-
+    
     RUN /scripts/std_checks.py
 
 # Format sql files

examples/postgresql/Earthfile

@@ -11,14 +11,14 @@ IMPORT ../../ AS cat-ci
 builder:
     DO postgresql-ci+BUILDER
 
-    # MUST Manually copy the .sqlfluff config used in the repo because the FUNCTION
-    # above can not be passed a reference to a local target as an argument.
-    COPY cat-ci+repo-config/repo/.sqlfluff .
-
 # check if the sql files are properly formatted and pass lint quality checks.
 #   CI target : true
 check:
-    FROM +builder
+    FROM postgresql-ci+sqlfluff-base
+
+    # MUST Manually copy the .sqlfluff config used in the repo because the FUNCTION
+    # above can not be passed a reference to a local target as an argument.
+    COPY cat-ci+repo-config/repo/.sqlfluff .
 
     # Now you can run the script without the file not found error
     DO postgresql-ci+CHECK