use build args instead of templating

Dockerfile

@@ -1,6 +1,7 @@
-FROM alpine:{alpine_version}
+ARG ALPINE_VERSION
+FROM alpine:${ALPINE_VERSION}
 
-ADD install.sh install.sh
+ADD src/install.sh install.sh
 RUN sh install.sh && rm install.sh
 
 ENV POSTGRES_DATABASE ''
@@ -19,8 +20,8 @@ ENV S3_S3V4 'no'
 ENV SCHEDULE ''
 ENV PASSPHRASE ''
 
-ADD run.sh run.sh
+ADD src/run.sh run.sh
-ADD backup.sh backup.sh
+ADD src/backup.sh backup.sh
-ADD restore.sh restore.sh
+ADD src/restore.sh restore.sh
 
 CMD ["sh", "run.sh"]

hooks/build

@@ -0,0 +1,17 @@
+#!/bin/bash
+set -eux
+
+declare -A arr
+arr[9]=3.6
+arr[10]=3.8
+arr[11]=3.10
+arr[12]=edge
+
+
+for i in "${!arr[@]}"; do
+  docker build \
+         --build-arg "ALPINE_VERSION=${arr[$i]}" \
+         --tag "postgres-backup-s3:$i" \
+         .
+done
+

hooks/push

@@ -0,0 +1,10 @@
+#!/bin/bash
+
+set -eux
+
+pg_versions=(9 10 11 12)
+
+for pg_ver in ${pg_versions[@]}; do
+  docker tag postgres-backup-s3:$pg_ver $DOCKER_REPO:$pg_ver
+  docker push $DOCKER_REPO:$pg_ver
+done

render.py

@@ -1,25 +0,0 @@
-#!/usr/bin/python3
-
-VERSIONS = (
-    ('9', '3.6'),
-    ('10', '3.8'),
-    ('11', '3.10'),
-    ('12', 'edge'),
-)
-
-
-def render(postgres_version, alpine_version):
-    with open(f'template.Dockerfile') as f:
-        template = f.read()
-
-    rendered = template.format(alpine_version=alpine_version)
-
-    with open(f'src/{postgres_version}.Dockerfile', 'w') as f:
-        f.write('# This file is generated from template.Dockerfile. Do not edit it directly.\n')
-        f.write('###########################################################################\n\n')
-        f.write(rendered)
-
-
-if __name__ == '__main__':
-    for versions in VERSIONS:
-        render(*versions)

src/10.Dockerfile

@@ -1,29 +0,0 @@
-# This file is generated from template.Dockerfile. Do not edit it directly.
-###########################################################################
-
-FROM alpine:3.8
-
-ADD install.sh install.sh
-RUN sh install.sh && rm install.sh
-
-ENV POSTGRES_DATABASE ''
-ENV POSTGRES_HOST ''
-ENV POSTGRES_PORT 5432
-ENV POSTGRES_USER ''
-ENV POSTGRES_PASSWORD ''
-ENV PGDUMP_EXTRA_OPTS ''
-ENV S3_ACCESS_KEY_ID ''
-ENV S3_SECRET_ACCESS_KEY ''
-ENV S3_BUCKET ''
-ENV S3_REGION 'us-west-1'
-ENV S3_PATH 'backup'
-ENV S3_ENDPOINT ''
-ENV S3_S3V4 'no'
-ENV SCHEDULE ''
-ENV PASSPHRASE ''
-
-ADD run.sh run.sh
-ADD backup.sh backup.sh
-ADD restore.sh restore.sh
-
-CMD ["sh", "run.sh"]

src/11.Dockerfile

@@ -1,29 +0,0 @@
-# This file is generated from template.Dockerfile. Do not edit it directly.
-###########################################################################
-
-FROM alpine:3.10
-
-ADD install.sh install.sh
-RUN sh install.sh && rm install.sh
-
-ENV POSTGRES_DATABASE ''
-ENV POSTGRES_HOST ''
-ENV POSTGRES_PORT 5432
-ENV POSTGRES_USER ''
-ENV POSTGRES_PASSWORD ''
-ENV PGDUMP_EXTRA_OPTS ''
-ENV S3_ACCESS_KEY_ID ''
-ENV S3_SECRET_ACCESS_KEY ''
-ENV S3_BUCKET ''
-ENV S3_REGION 'us-west-1'
-ENV S3_PATH 'backup'
-ENV S3_ENDPOINT ''
-ENV S3_S3V4 'no'
-ENV SCHEDULE ''
-ENV PASSPHRASE ''
-
-ADD run.sh run.sh
-ADD backup.sh backup.sh
-ADD restore.sh restore.sh
-
-CMD ["sh", "run.sh"]

src/12.Dockerfile

@@ -1,29 +0,0 @@
-# This file is generated from template.Dockerfile. Do not edit it directly.
-###########################################################################
-
-FROM alpine:edge
-
-ADD install.sh install.sh
-RUN sh install.sh && rm install.sh
-
-ENV POSTGRES_DATABASE ''
-ENV POSTGRES_HOST ''
-ENV POSTGRES_PORT 5432
-ENV POSTGRES_USER ''
-ENV POSTGRES_PASSWORD ''
-ENV PGDUMP_EXTRA_OPTS ''
-ENV S3_ACCESS_KEY_ID ''
-ENV S3_SECRET_ACCESS_KEY ''
-ENV S3_BUCKET ''
-ENV S3_REGION 'us-west-1'
-ENV S3_PATH 'backup'
-ENV S3_ENDPOINT ''
-ENV S3_S3V4 'no'
-ENV SCHEDULE ''
-ENV PASSPHRASE ''
-
-ADD run.sh run.sh
-ADD backup.sh backup.sh
-ADD restore.sh restore.sh
-
-CMD ["sh", "run.sh"]

src/9.Dockerfile

@@ -1,29 +0,0 @@
-# This file is generated from template.Dockerfile. Do not edit it directly.
-###########################################################################
-
-FROM alpine:3.6
-
-ADD install.sh install.sh
-RUN sh install.sh && rm install.sh
-
-ENV POSTGRES_DATABASE ''
-ENV POSTGRES_HOST ''
-ENV POSTGRES_PORT 5432
-ENV POSTGRES_USER ''
-ENV POSTGRES_PASSWORD ''
-ENV PGDUMP_EXTRA_OPTS ''
-ENV S3_ACCESS_KEY_ID ''
-ENV S3_SECRET_ACCESS_KEY ''
-ENV S3_BUCKET ''
-ENV S3_REGION 'us-west-1'
-ENV S3_PATH 'backup'
-ENV S3_ENDPOINT ''
-ENV S3_S3V4 'no'
-ENV SCHEDULE ''
-ENV PASSPHRASE ''
-
-ADD run.sh run.sh
-ADD backup.sh backup.sh
-ADD restore.sh restore.sh
-
-CMD ["sh", "run.sh"]

src/install.sh

@@ -1,6 +1,6 @@
 #! /bin/sh
 
-set -e
+set -eux
 set -o pipefail
 
 apk update
@@ -11,8 +11,8 @@ apk add postgresql-client
 # install gpg
 apk add gnupg
 
-# install s3 tools
 apk add python3
+apk add py3-pip  # separate package on edge only
 pip3 install awscli
 
 # install go-cron