Added generate-stackbrew-library script for Docker official images

generate-stackbrew-library.sh

@@ -0,0 +1,49 @@
+#!/usr/bin/env bash
+
+set -eu
+
+declare -a -r versions=( 3.0.28 4.0.11 4.2.5 )
+
+self="${BASH_SOURCE##*/}"
+
+# get the most recent commit which modified any of "$@"
+fileCommit() {
+        git log -1 --format='format:%H' HEAD -- "$@"
+}
+
+# prints "$2$1$3$1...$N"
+join() {
+    local sep="$1"; shift
+    local out; printf -v out "${sep//%/%%}%s" "$@"
+    echo "${out#$sep}"
+}
+
+cat <<-EOH
+# this file is generated via https://github.com/zabbix/zabbix-docker/blob/$(fileCommit "$self")/$self
+
+Maintainers: Alexey Pustovalov <alexey.pustovalov@zabbix.com> (@dotneft)
+GitRepo: https://github.com/zabbix/zabbix-docker.git
+EOH
+
+for version in "${versions[@]}"; do
+    major_version=${version%.*}
+    commit=`git rev-list -n 1 "$version"`
+
+    for component in agent java-gateway proxy-{mysql,sqlite3} server-{mysql,pgsql} web-{apache,nginx}-{mysql,pgsql}; do
+        for variant in alpine; do
+		dir="${component}/${variant}"
+		[ -f "$dir/Dockerfile" ] || continue
+
+		variantArches=( amd64 )
+
+		echo
+		cat <<-EOE
+			Tags: $version-$component, $major_version-$component
+			Architectures: $(join ', ' "${variantArches[@]}")
+			GitCommit: $commit
+			GitFetch: refs/heads/$major_version
+			Directory: $dir
+		EOE
+        done
+    done
+done