diff --git a/.travis.yml b/.travis.yml
index 7f74970f0..965120727 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,13 +2,20 @@ language: bash
 services: docker
 
 env:
-  - VERSION=5.0
-  - VERSION=2.4
-  - VERSION=2.3
-  - VERSION=2.2
-  - VERSION=2.1
-  - VERSION=2.0
-  - VERSION=1.5
+  - VERSION=5.0 VARIANT=
+  - VERSION=5.0 VARIANT=alpine
+  - VERSION=2.4 VARIANT=
+  - VERSION=2.4 VARIANT=alpine
+  - VERSION=2.3 VARIANT=
+  - VERSION=2.3 VARIANT=alpine
+  - VERSION=2.2 VARIANT=
+  - VERSION=2.2 VARIANT=alpine
+  - VERSION=2.1 VARIANT=
+  - VERSION=2.1 VARIANT=alpine
+  - VERSION=2.0 VARIANT=
+  - VERSION=2.0 VARIANT=alpine
+  - VERSION=1.5 VARIANT=
+  - VERSION=1.5 VARIANT=alpine
 
 install:
   - git clone https://github.com/docker-library/official-images.git ~/official-images
@@ -16,10 +23,10 @@ install:
 before_script:
   - env | sort
   - cd "$VERSION"
-  - image="logstash:$VERSION"
+  - image="logstash:${VERSION}${VARIANT:+-$VARIANT}"
 
 script:
-  - docker build -t "$image" .
+  - docker build -t "$image" "${VARIANT:-.}"
   - ~/official-images/test/run.sh "$image"
 
 after_script:
diff --git a/1.5/Dockerfile b/1.5/Dockerfile
index 445f8a59a..61c13ab34 100644
--- a/1.5/Dockerfile
+++ b/1.5/Dockerfile
@@ -28,11 +28,12 @@ RUN apt-key adv --keyserver ha.pool.sks-keyservers.net --recv-keys 46095ACC85485
 
 RUN echo 'deb http://packages.elastic.co/logstash/1.5/debian stable main' > /etc/apt/sources.list.d/logstash.list
 
-ENV LOGSTASH_VERSION 1:1.5.6-1
+ENV LOGSTASH_VERSION 1.5.6
+ENV LOGSTASH_DEB_VERSION 1:1.5.6-1
 
 RUN set -x \
 	&& apt-get update \
-	&& apt-get install -y --no-install-recommends logstash=$LOGSTASH_VERSION \
+	&& apt-get install -y --no-install-recommends "logstash=$LOGSTASH_DEB_VERSION" \
 	&& rm -rf /var/lib/apt/lists/*
 
 ENV PATH /opt/logstash/bin:$PATH
diff --git a/1.5/alpine/Dockerfile b/1.5/alpine/Dockerfile
new file mode 100644
index 000000000..b6c3d062d
--- /dev/null
+++ b/1.5/alpine/Dockerfile
@@ -0,0 +1,85 @@
+FROM openjdk:8-jre-alpine
+
+# ensure logstash user exists
+RUN addgroup -S logstash && adduser -S -G logstash logstash
+
+# install plugin dependencies
+RUN apk add --no-cache \
+# env: can't execute 'bash': No such file or directory
+		bash \
+		libzmq
+
+# grab su-exec for easy step-down from root
+RUN apk add --no-cache 'su-exec>=0.2'
+
+# https://www.elastic.co/guide/en/logstash/5.0/installing-logstash.html#_apt
+# https://artifacts.elastic.co/GPG-KEY-elasticsearch
+ENV GPG_KEY 46095ACC8548582C1A2699A9D27D666CD88E42B4
+
+ENV LOGSTASH_PATH /opt/logstash/bin
+ENV PATH $LOGSTASH_PATH:$PATH
+
+ENV LOGSTASH_VERSION 1.5.6
+ENV LOGSTASH_TARBALL="https://download.elastic.co/logstash/logstash/logstash-1.5.6.tar.gz" \
+	LOGSTASH_TARBALL_ASC="" \
+	LOGSTASH_TARBALL_SHA1="f3e4342f496e0d7e709de231daf624eb1fd80873"
+
+RUN set -ex; \
+	\
+	if [ -z "$LOGSTASH_TARBALL_SHA1" ] && [ -z "$LOGSTASH_TARBALL_ASC" ]; then \
+		echo >&2 'error: have neither a SHA1 _or_ a signature file -- cannot verify download!'; \
+		exit 1; \
+	fi; \
+	\
+	apk add --no-cache --virtual .fetch-deps \
+		ca-certificates \
+		gnupg \
+		openssl \
+		tar \
+	; \
+	\
+	wget -O logstash.tar.gz "$LOGSTASH_TARBALL"; \
+	\
+	if [ "$LOGSTASH_TARBALL_SHA1" ]; then \
+		echo "$LOGSTASH_TARBALL_SHA1 *logstash.tar.gz" | sha1sum -c -; \
+	fi; \
+	\
+	if [ "$LOGSTASH_TARBALL_ASC" ]; then \
+		wget -O logstash.tar.gz.asc "$LOGSTASH_TARBALL_ASC"; \
+		export GNUPGHOME="$(mktemp -d)"; \
+		gpg --keyserver ha.pool.sks-keyservers.net --recv-keys "$GPG_KEY"; \
+		gpg --batch --verify logstash.tar.gz.asc logstash.tar.gz; \
+		rm -r "$GNUPGHOME" logstash.tar.gz.asc; \
+	fi; \
+	\
+	dir="$(dirname "$LOGSTASH_PATH")"; \
+	\
+	mkdir -p "$dir"; \
+	tar -xf logstash.tar.gz --strip-components=1 -C "$dir"; \
+	rm logstash.tar.gz; \
+	\
+	apk del .fetch-deps; \
+	\
+	export LS_SETTINGS_DIR="$dir/config"; \
+# if the "log4j2.properties" file exists (logstash 5.x), let's empty it out so we get the default: "logging only errors to the console"
+	if [ -f "$LS_SETTINGS_DIR/log4j2.properties" ]; then \
+		cp "$LS_SETTINGS_DIR/log4j2.properties" "$LS_SETTINGS_DIR/log4j2.properties.dist"; \
+		truncate -s 0 "$LS_SETTINGS_DIR/log4j2.properties"; \
+	fi; \
+	\
+# set up some file permissions
+	for userDir in \
+		"$dir/config" \
+		"$dir/data" \
+	; do \
+		if [ -d "$userDir" ]; then \
+			chown -R logstash:logstash "$userDir"; \
+		fi; \
+	done; \
+	\
+	logstash --version
+
+COPY docker-entrypoint.sh /
+
+ENTRYPOINT ["/docker-entrypoint.sh"]
+CMD ["-e", ""]
diff --git a/1.5/alpine/docker-entrypoint.sh b/1.5/alpine/docker-entrypoint.sh
new file mode 100755
index 000000000..1d67a9f49
--- /dev/null
+++ b/1.5/alpine/docker-entrypoint.sh
@@ -0,0 +1,15 @@
+#!/bin/bash
+set -e
+
+# first arg is `-f` or `--some-option`
+if [ "${1#-}" != "$1" ]; then
+	set -- logstash "$@"
+fi
+
+# Run as user "logstash" if the command is "logstash"
+# allow the container to be started with `--user`
+if [ "$1" = 'logstash' -a "$(id -u)" = '0' ]; then
+	set -- su-exec logstash "$@"
+fi
+
+exec "$@"
diff --git a/1.5/docker-entrypoint.sh b/1.5/docker-entrypoint.sh
index dea4db59b..4b65b4212 100755
--- a/1.5/docker-entrypoint.sh
+++ b/1.5/docker-entrypoint.sh
@@ -1,9 +1,8 @@
 #!/bin/bash
-
 set -e
 
-# Add logstash as command if needed
-if [ "${1:0:1}" = '-' ]; then
+# first arg is `-f` or `--some-option`
+if [ "${1#-}" != "$1" ]; then
 	set -- logstash "$@"
 fi
 
diff --git a/2.0/Dockerfile b/2.0/Dockerfile
index 8b3d411ca..87662798f 100644
--- a/2.0/Dockerfile
+++ b/2.0/Dockerfile
@@ -28,11 +28,12 @@ RUN apt-key adv --keyserver ha.pool.sks-keyservers.net --recv-keys 46095ACC85485
 
 RUN echo 'deb http://packages.elastic.co/logstash/2.0/debian stable main' > /etc/apt/sources.list.d/logstash.list
 
-ENV LOGSTASH_VERSION 1:2.0.0-1
+ENV LOGSTASH_VERSION 2.0.0
+ENV LOGSTASH_DEB_VERSION 1:2.0.0-1
 
 RUN set -x \
 	&& apt-get update \
-	&& apt-get install -y --no-install-recommends logstash=$LOGSTASH_VERSION \
+	&& apt-get install -y --no-install-recommends "logstash=$LOGSTASH_DEB_VERSION" \
 	&& rm -rf /var/lib/apt/lists/*
 
 ENV PATH /opt/logstash/bin:$PATH
diff --git a/2.0/alpine/Dockerfile b/2.0/alpine/Dockerfile
new file mode 100644
index 000000000..3dcb2f36c
--- /dev/null
+++ b/2.0/alpine/Dockerfile
@@ -0,0 +1,85 @@
+FROM openjdk:8-jre-alpine
+
+# ensure logstash user exists
+RUN addgroup -S logstash && adduser -S -G logstash logstash
+
+# install plugin dependencies
+RUN apk add --no-cache \
+# env: can't execute 'bash': No such file or directory
+		bash \
+		libzmq
+
+# grab su-exec for easy step-down from root
+RUN apk add --no-cache 'su-exec>=0.2'
+
+# https://www.elastic.co/guide/en/logstash/5.0/installing-logstash.html#_apt
+# https://artifacts.elastic.co/GPG-KEY-elasticsearch
+ENV GPG_KEY 46095ACC8548582C1A2699A9D27D666CD88E42B4
+
+ENV LOGSTASH_PATH /opt/logstash/bin
+ENV PATH $LOGSTASH_PATH:$PATH
+
+ENV LOGSTASH_VERSION 2.0.0
+ENV LOGSTASH_TARBALL="https://download.elastic.co/logstash/logstash/logstash-2.0.0.tar.gz" \
+	LOGSTASH_TARBALL_ASC="" \
+	LOGSTASH_TARBALL_SHA1="f0961520dd9590d3b600c877be66f79f94a05f80"
+
+RUN set -ex; \
+	\
+	if [ -z "$LOGSTASH_TARBALL_SHA1" ] && [ -z "$LOGSTASH_TARBALL_ASC" ]; then \
+		echo >&2 'error: have neither a SHA1 _or_ a signature file -- cannot verify download!'; \
+		exit 1; \
+	fi; \
+	\
+	apk add --no-cache --virtual .fetch-deps \
+		ca-certificates \
+		gnupg \
+		openssl \
+		tar \
+	; \
+	\
+	wget -O logstash.tar.gz "$LOGSTASH_TARBALL"; \
+	\
+	if [ "$LOGSTASH_TARBALL_SHA1" ]; then \
+		echo "$LOGSTASH_TARBALL_SHA1 *logstash.tar.gz" | sha1sum -c -; \
+	fi; \
+	\
+	if [ "$LOGSTASH_TARBALL_ASC" ]; then \
+		wget -O logstash.tar.gz.asc "$LOGSTASH_TARBALL_ASC"; \
+		export GNUPGHOME="$(mktemp -d)"; \
+		gpg --keyserver ha.pool.sks-keyservers.net --recv-keys "$GPG_KEY"; \
+		gpg --batch --verify logstash.tar.gz.asc logstash.tar.gz; \
+		rm -r "$GNUPGHOME" logstash.tar.gz.asc; \
+	fi; \
+	\
+	dir="$(dirname "$LOGSTASH_PATH")"; \
+	\
+	mkdir -p "$dir"; \
+	tar -xf logstash.tar.gz --strip-components=1 -C "$dir"; \
+	rm logstash.tar.gz; \
+	\
+	apk del .fetch-deps; \
+	\
+	export LS_SETTINGS_DIR="$dir/config"; \
+# if the "log4j2.properties" file exists (logstash 5.x), let's empty it out so we get the default: "logging only errors to the console"
+	if [ -f "$LS_SETTINGS_DIR/log4j2.properties" ]; then \
+		cp "$LS_SETTINGS_DIR/log4j2.properties" "$LS_SETTINGS_DIR/log4j2.properties.dist"; \
+		truncate -s 0 "$LS_SETTINGS_DIR/log4j2.properties"; \
+	fi; \
+	\
+# set up some file permissions
+	for userDir in \
+		"$dir/config" \
+		"$dir/data" \
+	; do \
+		if [ -d "$userDir" ]; then \
+			chown -R logstash:logstash "$userDir"; \
+		fi; \
+	done; \
+	\
+	logstash --version
+
+COPY docker-entrypoint.sh /
+
+ENTRYPOINT ["/docker-entrypoint.sh"]
+CMD ["-e", ""]
diff --git a/2.0/alpine/docker-entrypoint.sh b/2.0/alpine/docker-entrypoint.sh
new file mode 100755
index 000000000..1d67a9f49
--- /dev/null
+++ b/2.0/alpine/docker-entrypoint.sh
@@ -0,0 +1,15 @@
+#!/bin/bash
+set -e
+
+# first arg is `-f` or `--some-option`
+if [ "${1#-}" != "$1" ]; then
+	set -- logstash "$@"
+fi
+
+# Run as user "logstash" if the command is "logstash"
+# allow the container to be started with `--user`
+if [ "$1" = 'logstash' -a "$(id -u)" = '0' ]; then
+	set -- su-exec logstash "$@"
+fi
+
+exec "$@"
diff --git a/2.0/docker-entrypoint.sh b/2.0/docker-entrypoint.sh
index dea4db59b..4b65b4212 100755
--- a/2.0/docker-entrypoint.sh
+++ b/2.0/docker-entrypoint.sh
@@ -1,9 +1,8 @@
 #!/bin/bash
-
 set -e
 
-# Add logstash as command if needed
-if [ "${1:0:1}" = '-' ]; then
+# first arg is `-f` or `--some-option`
+if [ "${1#-}" != "$1" ]; then
 	set -- logstash "$@"
 fi
 
diff --git a/2.1/Dockerfile b/2.1/Dockerfile
index 2d58f3f47..411814f32 100644
--- a/2.1/Dockerfile
+++ b/2.1/Dockerfile
@@ -28,11 +28,12 @@ RUN apt-key adv --keyserver ha.pool.sks-keyservers.net --recv-keys 46095ACC85485
 
 RUN echo 'deb http://packages.elastic.co/logstash/2.1/debian stable main' > /etc/apt/sources.list.d/logstash.list
 
-ENV LOGSTASH_VERSION 1:2.1.3-1
+ENV LOGSTASH_VERSION 2.1.3
+ENV LOGSTASH_DEB_VERSION 1:2.1.3-1
 
 RUN set -x \
 	&& apt-get update \
-	&& apt-get install -y --no-install-recommends logstash=$LOGSTASH_VERSION \
+	&& apt-get install -y --no-install-recommends "logstash=$LOGSTASH_DEB_VERSION" \
 	&& rm -rf /var/lib/apt/lists/*
 
 ENV PATH /opt/logstash/bin:$PATH
diff --git a/2.1/alpine/Dockerfile b/2.1/alpine/Dockerfile
new file mode 100644
index 000000000..bfa7016be
--- /dev/null
+++ b/2.1/alpine/Dockerfile
@@ -0,0 +1,85 @@
+FROM openjdk:8-jre-alpine
+
+# ensure logstash user exists
+RUN addgroup -S logstash && adduser -S -G logstash logstash
+
+# install plugin dependencies
+RUN apk add --no-cache \
+# env: can't execute 'bash': No such file or directory
+		bash \
+		libzmq
+
+# grab su-exec for easy step-down from root
+RUN apk add --no-cache 'su-exec>=0.2'
+
+# https://www.elastic.co/guide/en/logstash/5.0/installing-logstash.html#_apt
+# https://artifacts.elastic.co/GPG-KEY-elasticsearch
+ENV GPG_KEY 46095ACC8548582C1A2699A9D27D666CD88E42B4
+
+ENV LOGSTASH_PATH /opt/logstash/bin
+ENV PATH $LOGSTASH_PATH:$PATH
+
+ENV LOGSTASH_VERSION 2.1.3
+ENV LOGSTASH_TARBALL="https://download.elastic.co/logstash/logstash/logstash-2.1.3.tar.gz" \
+	LOGSTASH_TARBALL_ASC="" \
+	LOGSTASH_TARBALL_SHA1="283f6d8842df52c7d69f77b5c6d4755ee942b291"
+
+RUN set -ex; \
+	\
+	if [ -z "$LOGSTASH_TARBALL_SHA1" ] && [ -z "$LOGSTASH_TARBALL_ASC" ]; then \
+		echo >&2 'error: have neither a SHA1 _or_ a signature file -- cannot verify download!'; \
+		exit 1; \
+	fi; \
+	\
+	apk add --no-cache --virtual .fetch-deps \
+		ca-certificates \
+		gnupg \
+		openssl \
+		tar \
+	; \
+	\
+	wget -O logstash.tar.gz "$LOGSTASH_TARBALL"; \
+	\
+	if [ "$LOGSTASH_TARBALL_SHA1" ]; then \
+		echo "$LOGSTASH_TARBALL_SHA1 *logstash.tar.gz" | sha1sum -c -; \
+	fi; \
+	\
+	if [ "$LOGSTASH_TARBALL_ASC" ]; then \
+		wget -O logstash.tar.gz.asc "$LOGSTASH_TARBALL_ASC"; \
+		export GNUPGHOME="$(mktemp -d)"; \
+		gpg --keyserver ha.pool.sks-keyservers.net --recv-keys "$GPG_KEY"; \
+		gpg --batch --verify logstash.tar.gz.asc logstash.tar.gz; \
+		rm -r "$GNUPGHOME" logstash.tar.gz.asc; \
+	fi; \
+	\
+	dir="$(dirname "$LOGSTASH_PATH")"; \
+	\
+	mkdir -p "$dir"; \
+	tar -xf logstash.tar.gz --strip-components=1 -C "$dir"; \
+	rm logstash.tar.gz; \
+	\
+	apk del .fetch-deps; \
+	\
+	export LS_SETTINGS_DIR="$dir/config"; \
+# if the "log4j2.properties" file exists (logstash 5.x), let's empty it out so we get the default: "logging only errors to the console"
+	if [ -f "$LS_SETTINGS_DIR/log4j2.properties" ]; then \
+		cp "$LS_SETTINGS_DIR/log4j2.properties" "$LS_SETTINGS_DIR/log4j2.properties.dist"; \
+		truncate -s 0 "$LS_SETTINGS_DIR/log4j2.properties"; \
+	fi; \
+	\
+# set up some file permissions
+	for userDir in \
+		"$dir/config" \
+		"$dir/data" \
+	; do \
+		if [ -d "$userDir" ]; then \
+			chown -R logstash:logstash "$userDir"; \
+		fi; \
+	done; \
+	\
+	logstash --version
+
+COPY docker-entrypoint.sh /
+
+ENTRYPOINT ["/docker-entrypoint.sh"]
+CMD ["-e", ""]
diff --git a/2.1/alpine/docker-entrypoint.sh b/2.1/alpine/docker-entrypoint.sh
new file mode 100755
index 000000000..1d67a9f49
--- /dev/null
+++ b/2.1/alpine/docker-entrypoint.sh
@@ -0,0 +1,15 @@
+#!/bin/bash
+set -e
+
+# first arg is `-f` or `--some-option`
+if [ "${1#-}" != "$1" ]; then
+	set -- logstash "$@"
+fi
+
+# Run as user "logstash" if the command is "logstash"
+# allow the container to be started with `--user`
+if [ "$1" = 'logstash' -a "$(id -u)" = '0' ]; then
+	set -- su-exec logstash "$@"
+fi
+
+exec "$@"
diff --git a/2.1/docker-entrypoint.sh b/2.1/docker-entrypoint.sh
index dea4db59b..4b65b4212 100755
--- a/2.1/docker-entrypoint.sh
+++ b/2.1/docker-entrypoint.sh
@@ -1,9 +1,8 @@
 #!/bin/bash
-
 set -e
 
-# Add logstash as command if needed
-if [ "${1:0:1}" = '-' ]; then
+# first arg is `-f` or `--some-option`
+if [ "${1#-}" != "$1" ]; then
 	set -- logstash "$@"
 fi
 
diff --git a/2.2/Dockerfile b/2.2/Dockerfile
index 3e87f8e85..7fef69af7 100644
--- a/2.2/Dockerfile
+++ b/2.2/Dockerfile
@@ -28,11 +28,12 @@ RUN apt-key adv --keyserver ha.pool.sks-keyservers.net --recv-keys 46095ACC85485
 
 RUN echo 'deb http://packages.elastic.co/logstash/2.2/debian stable main' > /etc/apt/sources.list.d/logstash.list
 
-ENV LOGSTASH_VERSION 1:2.2.4-1
+ENV LOGSTASH_VERSION 2.2.4
+ENV LOGSTASH_DEB_VERSION 1:2.2.4-1
 
 RUN set -x \
 	&& apt-get update \
-	&& apt-get install -y --no-install-recommends logstash=$LOGSTASH_VERSION \
+	&& apt-get install -y --no-install-recommends "logstash=$LOGSTASH_DEB_VERSION" \
 	&& rm -rf /var/lib/apt/lists/*
 
 ENV PATH /opt/logstash/bin:$PATH
diff --git a/2.2/alpine/Dockerfile b/2.2/alpine/Dockerfile
new file mode 100644
index 000000000..1b72f067a
--- /dev/null
+++ b/2.2/alpine/Dockerfile
@@ -0,0 +1,85 @@
+FROM openjdk:8-jre-alpine
+
+# ensure logstash user exists
+RUN addgroup -S logstash && adduser -S -G logstash logstash
+
+# install plugin dependencies
+RUN apk add --no-cache \
+# env: can't execute 'bash': No such file or directory
+		bash \
+		libzmq
+
+# grab su-exec for easy step-down from root
+RUN apk add --no-cache 'su-exec>=0.2'
+
+# https://www.elastic.co/guide/en/logstash/5.0/installing-logstash.html#_apt
+# https://artifacts.elastic.co/GPG-KEY-elasticsearch
+ENV GPG_KEY 46095ACC8548582C1A2699A9D27D666CD88E42B4
+
+ENV LOGSTASH_PATH /opt/logstash/bin
+ENV PATH $LOGSTASH_PATH:$PATH
+
+ENV LOGSTASH_VERSION 2.2.4
+ENV LOGSTASH_TARBALL="https://download.elastic.co/logstash/logstash/logstash-2.2.4.tar.gz" \
+	LOGSTASH_TARBALL_ASC="" \
+	LOGSTASH_TARBALL_SHA1="4e64cbc617d1b9cbf20869daab22cb4df68895ed"
+
+RUN set -ex; \
+	\
+	if [ -z "$LOGSTASH_TARBALL_SHA1" ] && [ -z "$LOGSTASH_TARBALL_ASC" ]; then \
+		echo >&2 'error: have neither a SHA1 _or_ a signature file -- cannot verify download!'; \
+		exit 1; \
+	fi; \
+	\
+	apk add --no-cache --virtual .fetch-deps \
+		ca-certificates \
+		gnupg \
+		openssl \
+		tar \
+	; \
+	\
+	wget -O logstash.tar.gz "$LOGSTASH_TARBALL"; \
+	\
+	if [ "$LOGSTASH_TARBALL_SHA1" ]; then \
+		echo "$LOGSTASH_TARBALL_SHA1 *logstash.tar.gz" | sha1sum -c -; \
+	fi; \
+	\
+	if [ "$LOGSTASH_TARBALL_ASC" ]; then \
+		wget -O logstash.tar.gz.asc "$LOGSTASH_TARBALL_ASC"; \
+		export GNUPGHOME="$(mktemp -d)"; \
+		gpg --keyserver ha.pool.sks-keyservers.net --recv-keys "$GPG_KEY"; \
+		gpg --batch --verify logstash.tar.gz.asc logstash.tar.gz; \
+		rm -r "$GNUPGHOME" logstash.tar.gz.asc; \
+	fi; \
+	\
+	dir="$(dirname "$LOGSTASH_PATH")"; \
+	\
+	mkdir -p "$dir"; \
+	tar -xf logstash.tar.gz --strip-components=1 -C "$dir"; \
+	rm logstash.tar.gz; \
+	\
+	apk del .fetch-deps; \
+	\
+	export LS_SETTINGS_DIR="$dir/config"; \
+# if the "log4j2.properties" file exists (logstash 5.x), let's empty it out so we get the default: "logging only errors to the console"
+	if [ -f "$LS_SETTINGS_DIR/log4j2.properties" ]; then \
+		cp "$LS_SETTINGS_DIR/log4j2.properties" "$LS_SETTINGS_DIR/log4j2.properties.dist"; \
+		truncate -s 0 "$LS_SETTINGS_DIR/log4j2.properties"; \
+	fi; \
+	\
+# set up some file permissions
+	for userDir in \
+		"$dir/config" \
+		"$dir/data" \
+	; do \
+		if [ -d "$userDir" ]; then \
+			chown -R logstash:logstash "$userDir"; \
+		fi; \
+	done; \
+	\
+	logstash --version
+
+COPY docker-entrypoint.sh /
+
+ENTRYPOINT ["/docker-entrypoint.sh"]
+CMD ["-e", ""]
diff --git a/2.2/alpine/docker-entrypoint.sh b/2.2/alpine/docker-entrypoint.sh
new file mode 100755
index 000000000..1d67a9f49
--- /dev/null
+++ b/2.2/alpine/docker-entrypoint.sh
@@ -0,0 +1,15 @@
+#!/bin/bash
+set -e
+
+# first arg is `-f` or `--some-option`
+if [ "${1#-}" != "$1" ]; then
+	set -- logstash "$@"
+fi
+
+# Run as user "logstash" if the command is "logstash"
+# allow the container to be started with `--user`
+if [ "$1" = 'logstash' -a "$(id -u)" = '0' ]; then
+	set -- su-exec logstash "$@"
+fi
+
+exec "$@"
diff --git a/2.2/docker-entrypoint.sh b/2.2/docker-entrypoint.sh
index dea4db59b..4b65b4212 100755
--- a/2.2/docker-entrypoint.sh
+++ b/2.2/docker-entrypoint.sh
@@ -1,9 +1,8 @@
 #!/bin/bash
-
 set -e
 
-# Add logstash as command if needed
-if [ "${1:0:1}" = '-' ]; then
+# first arg is `-f` or `--some-option`
+if [ "${1#-}" != "$1" ]; then
 	set -- logstash "$@"
 fi
 
diff --git a/2.3/Dockerfile b/2.3/Dockerfile
index 761c96aa7..94e83effb 100644
--- a/2.3/Dockerfile
+++ b/2.3/Dockerfile
@@ -28,11 +28,12 @@ RUN apt-key adv --keyserver ha.pool.sks-keyservers.net --recv-keys 46095ACC85485
 
 RUN echo 'deb http://packages.elastic.co/logstash/2.3/debian stable main' > /etc/apt/sources.list.d/logstash.list
 
-ENV LOGSTASH_VERSION 1:2.3.4-1
+ENV LOGSTASH_VERSION 2.3.4
+ENV LOGSTASH_DEB_VERSION 1:2.3.4-1
 
 RUN set -x \
 	&& apt-get update \
-	&& apt-get install -y --no-install-recommends logstash=$LOGSTASH_VERSION \
+	&& apt-get install -y --no-install-recommends "logstash=$LOGSTASH_DEB_VERSION" \
 	&& rm -rf /var/lib/apt/lists/*
 
 ENV PATH /opt/logstash/bin:$PATH
diff --git a/2.3/alpine/Dockerfile b/2.3/alpine/Dockerfile
new file mode 100644
index 000000000..2665fe360
--- /dev/null
+++ b/2.3/alpine/Dockerfile
@@ -0,0 +1,85 @@
+FROM openjdk:8-jre-alpine
+
+# ensure logstash user exists
+RUN addgroup -S logstash && adduser -S -G logstash logstash
+
+# install plugin dependencies
+RUN apk add --no-cache \
+# env: can't execute 'bash': No such file or directory
+		bash \
+		libzmq
+
+# grab su-exec for easy step-down from root
+RUN apk add --no-cache 'su-exec>=0.2'
+
+# https://www.elastic.co/guide/en/logstash/5.0/installing-logstash.html#_apt
+# https://artifacts.elastic.co/GPG-KEY-elasticsearch
+ENV GPG_KEY 46095ACC8548582C1A2699A9D27D666CD88E42B4
+
+ENV LOGSTASH_PATH /opt/logstash/bin
+ENV PATH $LOGSTASH_PATH:$PATH
+
+ENV LOGSTASH_VERSION 2.3.4
+ENV LOGSTASH_TARBALL="https://download.elastic.co/logstash/logstash/logstash-2.3.4.tar.gz" \
+	LOGSTASH_TARBALL_ASC="" \
+	LOGSTASH_TARBALL_SHA1="5fc3fc36752018c66a476068f2c1cc61e96b09cb"
+
+RUN set -ex; \
+	\
+	if [ -z "$LOGSTASH_TARBALL_SHA1" ] && [ -z "$LOGSTASH_TARBALL_ASC" ]; then \
+		echo >&2 'error: have neither a SHA1 _or_ a signature file -- cannot verify download!'; \
+		exit 1; \
+	fi; \
+	\
+	apk add --no-cache --virtual .fetch-deps \
+		ca-certificates \
+		gnupg \
+		openssl \
+		tar \
+	; \
+	\
+	wget -O logstash.tar.gz "$LOGSTASH_TARBALL"; \
+	\
+	if [ "$LOGSTASH_TARBALL_SHA1" ]; then \
+		echo "$LOGSTASH_TARBALL_SHA1 *logstash.tar.gz" | sha1sum -c -; \
+	fi; \
+	\
+	if [ "$LOGSTASH_TARBALL_ASC" ]; then \
+		wget -O logstash.tar.gz.asc "$LOGSTASH_TARBALL_ASC"; \
+		export GNUPGHOME="$(mktemp -d)"; \
+		gpg --keyserver ha.pool.sks-keyservers.net --recv-keys "$GPG_KEY"; \
+		gpg --batch --verify logstash.tar.gz.asc logstash.tar.gz; \
+		rm -r "$GNUPGHOME" logstash.tar.gz.asc; \
+	fi; \
+	\
+	dir="$(dirname "$LOGSTASH_PATH")"; \
+	\
+	mkdir -p "$dir"; \
+	tar -xf logstash.tar.gz --strip-components=1 -C "$dir"; \
+	rm logstash.tar.gz; \
+	\
+	apk del .fetch-deps; \
+	\
+	export LS_SETTINGS_DIR="$dir/config"; \
+# if the "log4j2.properties" file exists (logstash 5.x), let's empty it out so we get the default: "logging only errors to the console"
+	if [ -f "$LS_SETTINGS_DIR/log4j2.properties" ]; then \
+		cp "$LS_SETTINGS_DIR/log4j2.properties" "$LS_SETTINGS_DIR/log4j2.properties.dist"; \
+		truncate -s 0 "$LS_SETTINGS_DIR/log4j2.properties"; \
+	fi; \
+	\
+# set up some file permissions
+	for userDir in \
+		"$dir/config" \
+		"$dir/data" \
+	; do \
+		if [ -d "$userDir" ]; then \
+			chown -R logstash:logstash "$userDir"; \
+		fi; \
+	done; \
+	\
+	logstash --version
+
+COPY docker-entrypoint.sh /
+
+ENTRYPOINT ["/docker-entrypoint.sh"]
+CMD ["-e", ""]
diff --git a/2.3/alpine/docker-entrypoint.sh b/2.3/alpine/docker-entrypoint.sh
new file mode 100755
index 000000000..1d67a9f49
--- /dev/null
+++ b/2.3/alpine/docker-entrypoint.sh
@@ -0,0 +1,15 @@
+#!/bin/bash
+set -e
+
+# first arg is `-f` or `--some-option`
+if [ "${1#-}" != "$1" ]; then
+	set -- logstash "$@"
+fi
+
+# Run as user "logstash" if the command is "logstash"
+# allow the container to be started with `--user`
+if [ "$1" = 'logstash' -a "$(id -u)" = '0' ]; then
+	set -- su-exec logstash "$@"
+fi
+
+exec "$@"
diff --git a/2.3/docker-entrypoint.sh b/2.3/docker-entrypoint.sh
index dea4db59b..4b65b4212 100755
--- a/2.3/docker-entrypoint.sh
+++ b/2.3/docker-entrypoint.sh
@@ -1,9 +1,8 @@
 #!/bin/bash
-
 set -e
 
-# Add logstash as command if needed
-if [ "${1:0:1}" = '-' ]; then
+# first arg is `-f` or `--some-option`
+if [ "${1#-}" != "$1" ]; then
 	set -- logstash "$@"
 fi
 
diff --git a/2.4/Dockerfile b/2.4/Dockerfile
index 5359a403c..5cedd0d90 100644
--- a/2.4/Dockerfile
+++ b/2.4/Dockerfile
@@ -28,11 +28,12 @@ RUN apt-key adv --keyserver ha.pool.sks-keyservers.net --recv-keys 46095ACC85485
 
 RUN echo 'deb http://packages.elastic.co/logstash/2.4/debian stable main' > /etc/apt/sources.list.d/logstash.list
 
-ENV LOGSTASH_VERSION 1:2.4.1-1
+ENV LOGSTASH_VERSION 2.4.1
+ENV LOGSTASH_DEB_VERSION 1:2.4.1-1
 
 RUN set -x \
 	&& apt-get update \
-	&& apt-get install -y --no-install-recommends logstash=$LOGSTASH_VERSION \
+	&& apt-get install -y --no-install-recommends "logstash=$LOGSTASH_DEB_VERSION" \
 	&& rm -rf /var/lib/apt/lists/*
 
 ENV PATH /opt/logstash/bin:$PATH
diff --git a/2.4/alpine/Dockerfile b/2.4/alpine/Dockerfile
new file mode 100644
index 000000000..6633185f7
--- /dev/null
+++ b/2.4/alpine/Dockerfile
@@ -0,0 +1,85 @@
+FROM openjdk:8-jre-alpine
+
+# ensure logstash user exists
+RUN addgroup -S logstash && adduser -S -G logstash logstash
+
+# install plugin dependencies
+RUN apk add --no-cache \
+# env: can't execute 'bash': No such file or directory
+		bash \
+		libzmq
+
+# grab su-exec for easy step-down from root
+RUN apk add --no-cache 'su-exec>=0.2'
+
+# https://www.elastic.co/guide/en/logstash/5.0/installing-logstash.html#_apt
+# https://artifacts.elastic.co/GPG-KEY-elasticsearch
+ENV GPG_KEY 46095ACC8548582C1A2699A9D27D666CD88E42B4
+
+ENV LOGSTASH_PATH /opt/logstash/bin
+ENV PATH $LOGSTASH_PATH:$PATH
+
+ENV LOGSTASH_VERSION 2.4.1
+ENV LOGSTASH_TARBALL="https://download.elastic.co/logstash/logstash/logstash-2.4.1.tar.gz" \
+	LOGSTASH_TARBALL_ASC="" \
+	LOGSTASH_TARBALL_SHA1="5ee4f3fa0ad4b182b3f00b4181a20c4e31a907b4"
+
+RUN set -ex; \
+	\
+	if [ -z "$LOGSTASH_TARBALL_SHA1" ] && [ -z "$LOGSTASH_TARBALL_ASC" ]; then \
+		echo >&2 'error: have neither a SHA1 _or_ a signature file -- cannot verify download!'; \
+		exit 1; \
+	fi; \
+	\
+	apk add --no-cache --virtual .fetch-deps \
+		ca-certificates \
+		gnupg \
+		openssl \
+		tar \
+	; \
+	\
+	wget -O logstash.tar.gz "$LOGSTASH_TARBALL"; \
+	\
+	if [ "$LOGSTASH_TARBALL_SHA1" ]; then \
+		echo "$LOGSTASH_TARBALL_SHA1 *logstash.tar.gz" | sha1sum -c -; \
+	fi; \
+	\
+	if [ "$LOGSTASH_TARBALL_ASC" ]; then \
+		wget -O logstash.tar.gz.asc "$LOGSTASH_TARBALL_ASC"; \
+		export GNUPGHOME="$(mktemp -d)"; \
+		gpg --keyserver ha.pool.sks-keyservers.net --recv-keys "$GPG_KEY"; \
+		gpg --batch --verify logstash.tar.gz.asc logstash.tar.gz; \
+		rm -r "$GNUPGHOME" logstash.tar.gz.asc; \
+	fi; \
+	\
+	dir="$(dirname "$LOGSTASH_PATH")"; \
+	\
+	mkdir -p "$dir"; \
+	tar -xf logstash.tar.gz --strip-components=1 -C "$dir"; \
+	rm logstash.tar.gz; \
+	\
+	apk del .fetch-deps; \
+	\
+	export LS_SETTINGS_DIR="$dir/config"; \
+# if the "log4j2.properties" file exists (logstash 5.x), let's empty it out so we get the default: "logging only errors to the console"
+	if [ -f "$LS_SETTINGS_DIR/log4j2.properties" ]; then \
+		cp "$LS_SETTINGS_DIR/log4j2.properties" "$LS_SETTINGS_DIR/log4j2.properties.dist"; \
+		truncate -s 0 "$LS_SETTINGS_DIR/log4j2.properties"; \
+	fi; \
+	\
+# set up some file permissions
+	for userDir in \
+		"$dir/config" \
+		"$dir/data" \
+	; do \
+		if [ -d "$userDir" ]; then \
+			chown -R logstash:logstash "$userDir"; \
+		fi; \
+	done; \
+	\
+	logstash --version
+
+COPY docker-entrypoint.sh /
+
+ENTRYPOINT ["/docker-entrypoint.sh"]
+CMD ["-e", ""]
diff --git a/2.4/alpine/docker-entrypoint.sh b/2.4/alpine/docker-entrypoint.sh
new file mode 100755
index 000000000..1d67a9f49
--- /dev/null
+++ b/2.4/alpine/docker-entrypoint.sh
@@ -0,0 +1,15 @@
+#!/bin/bash
+set -e
+
+# first arg is `-f` or `--some-option`
+if [ "${1#-}" != "$1" ]; then
+	set -- logstash "$@"
+fi
+
+# Run as user "logstash" if the command is "logstash"
+# allow the container to be started with `--user`
+if [ "$1" = 'logstash' -a "$(id -u)" = '0' ]; then
+	set -- su-exec logstash "$@"
+fi
+
+exec "$@"
diff --git a/2.4/docker-entrypoint.sh b/2.4/docker-entrypoint.sh
index dea4db59b..4b65b4212 100755
--- a/2.4/docker-entrypoint.sh
+++ b/2.4/docker-entrypoint.sh
@@ -1,9 +1,8 @@
 #!/bin/bash
-
 set -e
 
-# Add logstash as command if needed
-if [ "${1:0:1}" = '-' ]; then
+# first arg is `-f` or `--some-option`
+if [ "${1#-}" != "$1" ]; then
 	set -- logstash "$@"
 fi
 
diff --git a/5.0/Dockerfile b/5.0/Dockerfile
index 9b44e4cfa..866bde1c6 100644
--- a/5.0/Dockerfile
+++ b/5.0/Dockerfile
@@ -28,11 +28,12 @@ RUN apt-key adv --keyserver ha.pool.sks-keyservers.net --recv-keys 46095ACC85485
 
 RUN echo 'deb https://artifacts.elastic.co/packages/5.x/apt stable main' > /etc/apt/sources.list.d/logstash.list
 
-ENV LOGSTASH_VERSION 1:5.0.2-1
+ENV LOGSTASH_VERSION 5.0.2
+ENV LOGSTASH_DEB_VERSION 1:5.0.2-1
 
 RUN set -x \
 	&& apt-get update \
-	&& apt-get install -y --no-install-recommends logstash=$LOGSTASH_VERSION \
+	&& apt-get install -y --no-install-recommends "logstash=$LOGSTASH_DEB_VERSION" \
 	&& rm -rf /var/lib/apt/lists/*
 
 ENV PATH /usr/share/logstash/bin:$PATH
diff --git a/5.0/alpine/Dockerfile b/5.0/alpine/Dockerfile
new file mode 100644
index 000000000..463289db4
--- /dev/null
+++ b/5.0/alpine/Dockerfile
@@ -0,0 +1,85 @@
+FROM openjdk:8-jre-alpine
+
+# ensure logstash user exists
+RUN addgroup -S logstash && adduser -S -G logstash logstash
+
+# install plugin dependencies
+RUN apk add --no-cache \
+# env: can't execute 'bash': No such file or directory
+		bash \
+		libzmq
+
+# grab su-exec for easy step-down from root
+RUN apk add --no-cache 'su-exec>=0.2'
+
+# https://www.elastic.co/guide/en/logstash/5.0/installing-logstash.html#_apt
+# https://artifacts.elastic.co/GPG-KEY-elasticsearch
+ENV GPG_KEY 46095ACC8548582C1A2699A9D27D666CD88E42B4
+
+ENV LOGSTASH_PATH /usr/share/logstash/bin
+ENV PATH $LOGSTASH_PATH:$PATH
+
+ENV LOGSTASH_VERSION 5.0.2
+ENV LOGSTASH_TARBALL="https://artifacts.elastic.co/downloads/logstash/logstash-5.0.2.tar.gz" \
+	LOGSTASH_TARBALL_ASC="https://artifacts.elastic.co/downloads/logstash/logstash-5.0.2.tar.gz.asc" \
+	LOGSTASH_TARBALL_SHA1="e344558d0e8e964a66cbe67ec09f506b7a8be2e7"
+
+RUN set -ex; \
+	\
+	if [ -z "$LOGSTASH_TARBALL_SHA1" ] && [ -z "$LOGSTASH_TARBALL_ASC" ]; then \
+		echo >&2 'error: have neither a SHA1 _or_ a signature file -- cannot verify download!'; \
+		exit 1; \
+	fi; \
+	\
+	apk add --no-cache --virtual .fetch-deps \
+		ca-certificates \
+		gnupg \
+		openssl \
+		tar \
+	; \
+	\
+	wget -O logstash.tar.gz "$LOGSTASH_TARBALL"; \
+	\
+	if [ "$LOGSTASH_TARBALL_SHA1" ]; then \
+		echo "$LOGSTASH_TARBALL_SHA1 *logstash.tar.gz" | sha1sum -c -; \
+	fi; \
+	\
+	if [ "$LOGSTASH_TARBALL_ASC" ]; then \
+		wget -O logstash.tar.gz.asc "$LOGSTASH_TARBALL_ASC"; \
+		export GNUPGHOME="$(mktemp -d)"; \
+		gpg --keyserver ha.pool.sks-keyservers.net --recv-keys "$GPG_KEY"; \
+		gpg --batch --verify logstash.tar.gz.asc logstash.tar.gz; \
+		rm -r "$GNUPGHOME" logstash.tar.gz.asc; \
+	fi; \
+	\
+	dir="$(dirname "$LOGSTASH_PATH")"; \
+	\
+	mkdir -p "$dir"; \
+	tar -xf logstash.tar.gz --strip-components=1 -C "$dir"; \
+	rm logstash.tar.gz; \
+	\
+	apk del .fetch-deps; \
+	\
+	export LS_SETTINGS_DIR="$dir/config"; \
+# if the "log4j2.properties" file exists (logstash 5.x), let's empty it out so we get the default: "logging only errors to the console"
+	if [ -f "$LS_SETTINGS_DIR/log4j2.properties" ]; then \
+		cp "$LS_SETTINGS_DIR/log4j2.properties" "$LS_SETTINGS_DIR/log4j2.properties.dist"; \
+		truncate -s 0 "$LS_SETTINGS_DIR/log4j2.properties"; \
+	fi; \
+	\
+# set up some file permissions
+	for userDir in \
+		"$dir/config" \
+		"$dir/data" \
+	; do \
+		if [ -d "$userDir" ]; then \
+			chown -R logstash:logstash "$userDir"; \
+		fi; \
+	done; \
+	\
+	logstash --version
+
+COPY docker-entrypoint.sh /
+
+ENTRYPOINT ["/docker-entrypoint.sh"]
+CMD ["-e", ""]
diff --git a/5.0/alpine/docker-entrypoint.sh b/5.0/alpine/docker-entrypoint.sh
new file mode 100755
index 000000000..1d67a9f49
--- /dev/null
+++ b/5.0/alpine/docker-entrypoint.sh
@@ -0,0 +1,15 @@
+#!/bin/bash
+set -e
+
+# first arg is `-f` or `--some-option`
+if [ "${1#-}" != "$1" ]; then
+	set -- logstash "$@"
+fi
+
+# Run as user "logstash" if the command is "logstash"
+# allow the container to be started with `--user`
+if [ "$1" = 'logstash' -a "$(id -u)" = '0' ]; then
+	set -- su-exec logstash "$@"
+fi
+
+exec "$@"
diff --git a/5.0/docker-entrypoint.sh b/5.0/docker-entrypoint.sh
index dea4db59b..4b65b4212 100755
--- a/5.0/docker-entrypoint.sh
+++ b/5.0/docker-entrypoint.sh
@@ -1,9 +1,8 @@
 #!/bin/bash
-
 set -e
 
-# Add logstash as command if needed
-if [ "${1:0:1}" = '-' ]; then
+# first arg is `-f` or `--some-option`
+if [ "${1#-}" != "$1" ]; then
 	set -- logstash "$@"
 fi
 
diff --git a/Dockerfile-alpine.template b/Dockerfile-alpine.template
new file mode 100644
index 000000000..df886373f
--- /dev/null
+++ b/Dockerfile-alpine.template
@@ -0,0 +1,85 @@
+FROM openjdk:8-jre-alpine
+
+# ensure logstash user exists
+RUN addgroup -S logstash && adduser -S -G logstash logstash
+
+# install plugin dependencies
+RUN apk add --no-cache \
+# env: can't execute 'bash': No such file or directory
+		bash \
+		libzmq
+
+# grab su-exec for easy step-down from root
+RUN apk add --no-cache 'su-exec>=0.2'
+
+# https://www.elastic.co/guide/en/logstash/5.0/installing-logstash.html#_apt
+# https://artifacts.elastic.co/GPG-KEY-elasticsearch
+ENV GPG_KEY 46095ACC8548582C1A2699A9D27D666CD88E42B4
+
+ENV LOGSTASH_PATH %%LOGSTASH_PATH%%
+ENV PATH $LOGSTASH_PATH:$PATH
+
+ENV LOGSTASH_VERSION %%LOGSTASH_VERSION%%
+ENV LOGSTASH_TARBALL="%%LOGSTASH_TARBALL%%" \
+	LOGSTASH_TARBALL_ASC="%%LOGSTASH_TARBALL_ASC%%" \
+	LOGSTASH_TARBALL_SHA1="%%LOGSTASH_TARBALL_SHA1%%"
+
+RUN set -ex; \
+	\
+	if [ -z "$LOGSTASH_TARBALL_SHA1" ] && [ -z "$LOGSTASH_TARBALL_ASC" ]; then \
+		echo >&2 'error: have neither a SHA1 _or_ a signature file -- cannot verify download!'; \
+		exit 1; \
+	fi; \
+	\
+	apk add --no-cache --virtual .fetch-deps \
+		ca-certificates \
+		gnupg \
+		openssl \
+		tar \
+	; \
+	\
+	wget -O logstash.tar.gz "$LOGSTASH_TARBALL"; \
+	\
+	if [ "$LOGSTASH_TARBALL_SHA1" ]; then \
+		echo "$LOGSTASH_TARBALL_SHA1 *logstash.tar.gz" | sha1sum -c -; \
+	fi; \
+	\
+	if [ "$LOGSTASH_TARBALL_ASC" ]; then \
+		wget -O logstash.tar.gz.asc "$LOGSTASH_TARBALL_ASC"; \
+		export GNUPGHOME="$(mktemp -d)"; \
+		gpg --keyserver ha.pool.sks-keyservers.net --recv-keys "$GPG_KEY"; \
+		gpg --batch --verify logstash.tar.gz.asc logstash.tar.gz; \
+		rm -r "$GNUPGHOME" logstash.tar.gz.asc; \
+	fi; \
+	\
+	dir="$(dirname "$LOGSTASH_PATH")"; \
+	\
+	mkdir -p "$dir"; \
+	tar -xf logstash.tar.gz --strip-components=1 -C "$dir"; \
+	rm logstash.tar.gz; \
+	\
+	apk del .fetch-deps; \
+	\
+	export LS_SETTINGS_DIR="$dir/config"; \
+# if the "log4j2.properties" file exists (logstash 5.x), let's empty it out so we get the default: "logging only errors to the console"
+	if [ -f "$LS_SETTINGS_DIR/log4j2.properties" ]; then \
+		cp "$LS_SETTINGS_DIR/log4j2.properties" "$LS_SETTINGS_DIR/log4j2.properties.dist"; \
+		truncate -s 0 "$LS_SETTINGS_DIR/log4j2.properties"; \
+	fi; \
+	\
+# set up some file permissions
+	for userDir in \
+		"$dir/config" \
+		"$dir/data" \
+	; do \
+		if [ -d "$userDir" ]; then \
+			chown -R logstash:logstash "$userDir"; \
+		fi; \
+	done; \
+	\
+	logstash --version
+
+COPY docker-entrypoint.sh /
+
+ENTRYPOINT ["/docker-entrypoint.sh"]
+CMD ["-e", ""]
diff --git a/Dockerfile.template b/Dockerfile-debian.template
similarity index 94%
rename from Dockerfile.template
rename to Dockerfile-debian.template
index e7c997e6f..dbbc6720a 100644
--- a/Dockerfile.template
+++ b/Dockerfile-debian.template
@@ -29,10 +29,11 @@ RUN apt-key adv --keyserver ha.pool.sks-keyservers.net --recv-keys 46095ACC85485
 RUN echo 'deb %%LOGSTASH_DEB_REPO%% stable main' > /etc/apt/sources.list.d/logstash.list
 
 ENV LOGSTASH_VERSION %%LOGSTASH_VERSION%%
+ENV LOGSTASH_DEB_VERSION %%LOGSTASH_DEB_VERSION%%
 
 RUN set -x \
 	&& apt-get update \
-	&& apt-get install -y --no-install-recommends logstash=$LOGSTASH_VERSION \
+	&& apt-get install -y --no-install-recommends "logstash=$LOGSTASH_DEB_VERSION" \
 	&& rm -rf /var/lib/apt/lists/*
 
 ENV PATH %%LOGSTASH_PATH%%:$PATH
diff --git a/docker-entrypoint.sh b/docker-entrypoint.sh
index dea4db59b..4b65b4212 100755
--- a/docker-entrypoint.sh
+++ b/docker-entrypoint.sh
@@ -1,9 +1,8 @@
 #!/bin/bash
-
 set -e
 
-# Add logstash as command if needed
-if [ "${1:0:1}" = '-' ]; then
+# first arg is `-f` or `--some-option`
+if [ "${1#-}" != "$1" ]; then
 	set -- logstash "$@"
 fi
 
diff --git a/generate-stackbrew-library.sh b/generate-stackbrew-library.sh
index 273a28dc6..c367bffb1 100755
--- a/generate-stackbrew-library.sh
+++ b/generate-stackbrew-library.sh
@@ -13,6 +13,9 @@ cd "$(dirname "$(readlink -f "$BASH_SOURCE")")"
 versions=( */ )
 versions=( "${versions[@]%/}" )
 
+# sort version numbers with highest first
+IFS=$'\n'; versions=( $(echo "${versions[*]}" | sort -rV) ); unset IFS
+
 # get the most recent commit which modified any of "$@"
 fileCommit() {
 	git log -1 --format='format:%H' HEAD -- "$@"
@@ -53,7 +56,7 @@ join() {
 for version in "${versions[@]}"; do
 	commit="$(dirCommit "$version")"
 
-	fullVersion="$(git show "$commit":"$version/Dockerfile" | awk '$1 == "ENV" && $2 == "LOGSTASH_VERSION" { gsub(/^.*:/, "", $3); gsub(/~/, "-", $3); print $3; exit }')"
+	fullVersion="$(git show "$commit":"$version/Dockerfile" | awk '$1 == "ENV" && $2 == "LOGSTASH_VERSION" { print $3; exit }')"
 
 	versionAliases=()
 	while [ "$fullVersion" != "$version" -a "${fullVersion%[.-]*}" != "$fullVersion" ]; do
@@ -71,4 +74,20 @@ for version in "${versions[@]}"; do
 		GitCommit: $commit
 		Directory: $version
 	EOE
+
+	for variant in alpine; do
+		[ -f "$version/$variant/Dockerfile" ] || continue
+
+		commit="$(dirCommit "$version/$variant")"
+
+		variantAliases=( "${versionAliases[@]/%/-$variant}" )
+		variantAliases=( "${variantAliases[@]//latest-/}" )
+
+		echo
+		cat <<-EOE
+			Tags: $(join ', ' "${variantAliases[@]}")
+			GitCommit: $commit
+			Directory: $version/$variant
+		EOE
+	done
 done
diff --git a/update.sh b/update.sh
index 4dd7bee5a..bc756ea73 100755
--- a/update.sh
+++ b/update.sh
@@ -11,14 +11,14 @@ versions=( "${versions[@]%/}" )
 
 travisEnv=
 for version in "${versions[@]}"; do
-	travisEnv='\n  - VERSION='"$version$travisEnv"
-
 	major="${version%%.*}"
 	debRepo="https://artifacts.elastic.co/packages/${major}.x/apt"
 	logstashPath='/usr/share/logstash/bin'
+	tarballUrlBase='https://artifacts.elastic.co/downloads'
 	if [ "$major" -lt 5 ]; then
 		debRepo="http://packages.elastic.co/logstash/$version/debian"
 		logstashPath='/opt/logstash/bin'
+		tarballUrlBase='https://download.elastic.co/logstash'
 	fi
 
 	fullVersion="$(curl -fsSL "$debRepo/dists/stable/main/binary-amd64/Packages.gz" | gunzip | awk -F ': ' '$1 == "Package" { pkg = $2 } pkg == "logstash" && $1 == "Version" { print $2 }' | sort -rV | head -n1)"
@@ -26,15 +26,50 @@ for version in "${versions[@]}"; do
 		echo >&2 "warning: cannot find full version for $version"
 		continue
 	fi
+	# convert "1:5.0.2-1" over to "5.0.2"
+	plainVersion="${fullVersion%%-*}" # strip non-upstream-version
+	plainVersion="${plainVersion##*:}" # strip epoch
+	tilde='~'; plainVersion="${plainVersion//$tilde/-}" # replace '~' with '-'
+
 	(
 		set -x
 		cp docker-entrypoint.sh "$version/"
 		sed '
+			s!%%LOGSTASH_VERSION%%!'"$plainVersion"'!g;
 			s!%%LOGSTASH_DEB_REPO%%!'"$debRepo"'!g;
-			s!%%LOGSTASH_VERSION%%!'"$fullVersion"'!g;
+			s!%%LOGSTASH_DEB_VERSION%%!'"$fullVersion"'!g;
 			s!%%LOGSTASH_PATH%%!'"$logstashPath"'!g;
-		' Dockerfile.template > "$version/Dockerfile"
+		' Dockerfile-debian.template > "$version/Dockerfile"
 	)
+
+	if [ -d "$version/alpine" ]; then
+		tarball="$tarballUrlBase/logstash/logstash-${plainVersion}.tar.gz"
+		tarballAsc="${tarball}.asc"
+		if ! wget --quiet --spider "$tarballAsc"; then
+			tarballAsc=
+		fi
+		tarballSha1=
+		for sha1Url in "${tarball}.sha1" "${tarball}.sha1.txt"; do
+			if sha1="$(wget -qO- "$sha1Url")"; then
+				tarballSha1="${sha1%% *}"
+				break
+			fi
+		done
+		(
+			set -x
+			cp docker-entrypoint.sh "$version/alpine/"
+			sed -i 's/gosu/su-exec/g' "$version/alpine/docker-entrypoint.sh"
+			sed \
+				-e 's!%%LOGSTASH_VERSION%%!'"$plainVersion"'!g' \
+				-e 's!%%LOGSTASH_PATH%%!'"$logstashPath"'!g' \
+				-e 's!%%LOGSTASH_TARBALL%%!'"$tarball"'!g' \
+				-e 's!%%LOGSTASH_TARBALL_ASC%%!'"$tarballAsc"'!g' \
+				-e 's!%%LOGSTASH_TARBALL_SHA1%%!'"$tarballSha1"'!g' \
+				Dockerfile-alpine.template > "$version/alpine/Dockerfile"
+		)
+		travisEnv='\n  - VERSION='"$version VARIANT=alpine$travisEnv"
+	fi
+	travisEnv='\n  - VERSION='"$version VARIANT=$travisEnv"
 done
 
 travis="$(awk -v 'RS=\n\n' '$1 == "env:" { $0 = "env:'"$travisEnv"'" } { printf "%s%s", $0, RS }' .travis.yml)"