Dockerfile.postgres

FROM postgres:latest

# Set environment variables for PostgreSQL configuration
ENV POSTGRES_USER=postgres \
	POSTGRES_PASSWORD=slavepassword \
	POSTGRES_DB=mydatabase


# Configure replication
RUN echo "host replication all 0.0.0.0/0 md5" >> /var/lib/postgresql/data/pg_hba.conf && \
	echo "primary_conninfo = 'host=master_ip port=5432 user=postgres password=masterpassword'" >> /var/lib/postgresql/data/postgresql.conf && \
	echo "standby_mode = 'on'" > /var/lib/postgresql/data/recovery.conf

# Install Go (optional)
RUN apt-get update && apt-get install -y ca-certificates
RUN apt-get update && apt-get install -y golang && rm -rf /var/lib/apt/lists/*

# Copy application files
COPY ./app /app

# Set working directory for the Go application
WORKDIR /app

# Expose the PostgreSQL port and application port
EXPOSE 8081

# Ensure the data directory is empty
RUN rm -rf /var/lib/postgresql/data/*

# Copy initialization files
COPY ./init.sql /docker-entrypoint-initdb.d/init.sql
# Run PostgreSQL as the "postgres" user

# Copy the custom entrypoint script
COPY entrypoint.sh /entrypoint.sh

# Give it execute permissions
RUN chmod +x /entrypoint.sh

# Use custom entrypoint to start both PostgreSQL and the Go application
ENTRYPOINT ["/entrypoint.sh"]