DAT-10956 Docker Native Executors Examples

README.md

@@ -165,3 +165,7 @@ or `docker run --rm -v <PATH TO CHANGELOG DIR>:/liquibase/changelog liquibase/li
 - SQLite: `jdbc:sqlite:/tmp/<DB FILE NAME>.db`
 
 Note: If the database IP refers to a locally running docker container then one needs to specify host networking like `docker run --network=host -rm -v ...`
+
+#### Adding Native Executors
+
+The recommended path for adding native executors such as Oracle SQL*Plus, Microsoft SQLCMD, or Postgres PSQL is to extend the liquibase/liquibase Dockerfile.  Examples are provided in the [Examples](/examples) Directory.

examples/mssql/Dockerfile.sqlcmd

@@ -0,0 +1,15 @@
+FROM liquibase/liquibase:latest
+
+# Install SQLCMD
+USER root
+RUN wget -qO - https://packages.microsoft.com/keys/microsoft.asc | apt-key add - && \
+  wget -qO - https://packages.microsoft.com/config/ubuntu/20.04/prod.list | tee /etc/apt/sources.list.d/msprod.list && \
+  apt-get update -y && \
+  ACCEPT_EULA=Y apt-get install --no-install-recommends -y mssql-tools unixodbc-dev && \
+  rm -rf /var/lib/apt/lists/*
+
+# Set SQLCMD Env Vars
+ENV PATH="$PATH:/opt/mssql-tools/bin"
+
+# Return to liquibase user space
+USER liquibase

examples/oracle/Dockerfile.sqlplus

@@ -0,0 +1,17 @@
+FROM liquibase/liquibase:latest
+
+# Install SQLPlus
+USER root
+RUN apt-get update && apt-get -y install libaio1 libaio-dev && rm -rf /var/lib/apt/lists/*
+RUN mkdir /opt/oracle
+# You must already have the sqlplus archives downloaded from Oracle
+COPY instantclient-sqlplus-linux.x64-19.12.0.0.0dbru.zip instantclient-basic-linux.x64-19.12.0.0.0dbru.zip .
+RUN sh -c 'unzip -q "*.zip" -d /opt/oracle/' 
+RUN rm *.zip
+
+# Set SQLPlus Env Vars
+ENV PATH="$PATH:/opt/oracle/instantclient_19_12"
+ENV LD_LIBRARY_PATH="$LD_LIBRARY_PATH:/opt/oracle/instantclient_19_12"
+
+# Return to liquibase user space
+USER liquibase

examples/postgres/Dockerfile.psql

@@ -0,0 +1,10 @@
+FROM liquibase/liquibase:latest
+
+# Install PSQL
+USER root
+RUN  apt-get update -y && \
+  apt-get install --no-install-recommends -y postgresql-client && \
+  rm -rf /var/lib/apt/lists/*
+
+# Return to liquibase user space
+USER liquibase