docker-postgres-upgrade/Dockerfile.template at master · tianon/docker-postgres-upgrade · GitHub

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FROM {{ .from }}

RUN sed -i 's/$/ {{ .old }}/' /etc/apt/sources.list.d/pgdg.list

RUN set -eux; \
	apt-get install --update -y --no-install-recommends \
		postgresql-{{ .old }}={{ .version | @sh }} \
	; \
	apt-get dist-clean

ENV PGBINOLD /usr/lib/postgresql/{{ .old }}/bin
ENV PGBINNEW /usr/lib/postgresql/{{ .new }}/bin
RUN set -eux; \
	"$PGBINOLD/postgres" --version; \
	"$PGBINNEW/postgres" --version

{{
	def dir($ver):
		"/var/lib/postgresql/\($ver)/\(
			# TODO swap 100% from /data to /docker (https://github.com/docker-library/postgres/pull/1259)
			if IN($ver; "13", "14", "15", "16", "17") then
				"data"
			else
				"docker"
			end
		)"
-}}
ENV PGDATAOLD {{ dir(.old) }}
ENV PGDATANEW {{ dir(.new) }}

RUN install \
		--verbose \
		--owner postgres \
		--group postgres \
		--mode 1777 \
		--directory \
		"$PGDATAOLD" \
		"$PGDATANEW"

WORKDIR /var/lib/postgresql

COPY docker-upgrade /usr/local/bin/

ENTRYPOINT ["docker-upgrade"]

# recommended: --link
CMD ["pg_upgrade"]