Dockerfile-pg-with-pg_trgm

FROM postgres:12-alpine

RUN mkdir -p /docker-entrypoint-initdb.d \
    && echo -e "\
#!/bin/sh \n\
set -e    \n\
\n\
"\${psql[@]}" <<- 'EOSQL'  \n\
CREATE EXTENSION IF NOT EXISTS pg_trgm;  \n\
EOSQL" >> /docker-entrypoint-initdb.d/initpg-with-pg_trgm.sh \
    && chmod +x /docker-entrypoint-initdb.d/initpg-with-pg_trgm.sh

# hope to be following:
#  cat >> /docker-entrypoint-initdb.d/initpg-with-pg_trgm.sh <<EOF
#  #!/bin/sh
#
#  set -e
#
#  "\${psql[@]}" <<- 'EOSQL'
#  CREATE EXTENSION IF NOT EXISTS pg_trgm;
#  EOSQL
#  EOF \