FROM docker.io/postgres:18.1@sha256:28bda6d50590658221007b10573830c941b483e9d1a5bc2713a3f60477df8389 AS postgresql

FROM docker.io/alpine:3.22@sha256:4b7ce07002c69e8f3d704a9c5d6fd3053be500b7f1c69fc0d80990c2ad8dd412 AS base

COPY --from=postgresql /usr/bin/pg_dump /usr/local/bin/pg_dump
COPY --from=postgresql /usr/bin/psql /usr/local/bin/psql

RUN apk update && apk add --no-cache \
    bash \
    curl \
    restic \
    jq

WORKDIR /app

COPY src/backup.sh /app/backup.sh

RUN chmod +x /app/backup.sh

ENTRYPOINT ["/app/backup.sh"]