feat: first version
Change-Id: I8f1ebf3fa896e66a485e4f2cc9d50c0d5eb46412
diff --git a/.gitreview b/.gitreview
new file mode 100644
index 0000000..7b6a48c
--- /dev/null
+++ b/.gitreview
@@ -0,0 +1,4 @@
+[gerrit]
+host=gerrit.avm99963.com
+project=docker/twix
+defaultbranch=main
diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..a1e122f
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,133 @@
+FROM alpine:3.20.1 as openssl-builder
+
+ENV OPENSSL_URL https://www.openssl.org/source/openssl-3.3.1.tar.gz
+ENV OPENSSL_SHA256 777cd596284c883375a2a7a11bf5d2786fc5413255efab20c50d6ffe6d020b7e
+
+RUN set -eux; \
+ \
+ apk add --no-cache \
+ build-base \
+ perl \
+ wget \
+ tar \
+ linux-headers
+
+RUN set -eux; \
+ \
+ wget -O openssl.tar.gz "$OPENSSL_URL"; \
+ echo "$OPENSSL_SHA256 *openssl.tar.gz" | sha256sum -c; \
+ mkdir -p /usr/src/openssl; \
+ tar -xzf openssl.tar.gz -C /usr/src/openssl --strip-components=1; \
+ rm openssl.tar.gz; \
+ cd /usr/src/openssl; \
+ ./config \
+ --prefix=/opt/openssl \
+ --openssldir=/opt/openssl \
+ enable-ssl3 \
+ enable-ssl3-method \
+ no-tests \
+ no-shared; \
+ nproc="$(getconf _NPROCESSORS_ONLN)"; \
+ eval "make -j '$nproc'"; \
+ eval "make install_sw install_ssldirs"; \
+ cd /; \
+ rm -rf /usr/src/openssl
+
+
+FROM alpine:3.20.1
+
+# runtime dependencies
+RUN set -eux; \
+ apk add --no-cache \
+# @system-ca: https://github.com/docker-library/haproxy/pull/216
+ ca-certificates \
+ ;
+
+# roughly, https://git.alpinelinux.org/aports/tree/main/haproxy/haproxy.pre-install?h=3.12-stable
+RUN set -eux; \
+ addgroup --gid 99 --system haproxy; \
+ adduser \
+ --disabled-password \
+ --home /var/lib/haproxy \
+ --ingroup haproxy \
+ --no-create-home \
+ --system \
+ --uid 99 \
+ haproxy \
+ ; \
+ mkdir /var/lib/haproxy; \
+ chown haproxy:haproxy /var/lib/haproxy
+
+COPY --from=openssl-builder /opt/openssl /opt/openssl
+
+ENV HAPROXY_VERSION 3.0.2
+ENV HAPROXY_URL https://www.haproxy.org/download/3.0/src/haproxy-3.0.2.tar.gz
+ENV HAPROXY_SHA256 9672ee43b109f19356c35d72687b222dcf82b879360c6e82677397376cf5dc36
+
+# see https://sources.debian.net/src/haproxy/jessie/debian/rules/ for some helpful navigation of the possible "make" arguments
+RUN set -eux; \
+ \
+ apk add --no-cache --virtual .build-deps \
+ gcc \
+ musl-dev \
+ linux-headers \
+ lua5.4-dev \
+ make \
+ pcre2-dev \
+ readline-dev \
+ tar \
+ ; \
+ \
+ wget -O haproxy.tar.gz "$HAPROXY_URL"; \
+ echo "$HAPROXY_SHA256 *haproxy.tar.gz" | sha256sum -c; \
+ mkdir -p /usr/src/haproxy; \
+ tar -xzf haproxy.tar.gz -C /usr/src/haproxy --strip-components=1; \
+ rm haproxy.tar.gz; \
+ \
+ makeOpts=' \
+ TARGET=linux-musl \
+ USE_GETADDRINFO=1 \
+ USE_LUA=1 LUA_INC=/usr/include/lua5.4 LUA_LIB=/usr/lib/lua5.4 \
+ USE_OPENSSL=1 SSL_INC=/opt/openssl/include SSL_LIB=/opt/openssl/lib64 \
+ USE_PCRE2=1 USE_PCRE2_JIT=1 \
+ USE_PROMEX=1 \
+ \
+ EXTRA_OBJS=" \
+ " \
+ '; \
+ \
+ nproc="$(getconf _NPROCESSORS_ONLN)"; \
+ eval "make -C /usr/src/haproxy -j '$nproc' all $makeOpts"; \
+ eval "make -C /usr/src/haproxy install-bin $makeOpts"; \
+ \
+ mkdir -p /usr/local/etc/haproxy; \
+ cp -R /usr/src/haproxy/examples/errorfiles /usr/local/etc/haproxy/errors; \
+ rm -rf /usr/src/haproxy; \
+ \
+ runDeps="$( \
+ scanelf --needed --nobanner --format '%n#p' --recursive /usr/local \
+ | tr ',' '\n' \
+ | sort -u \
+ | awk 'system("[ -e /usr/local/lib/" $1 " ]") == 0 { next } { print "so:" $1 }' \
+ )"; \
+ apk add --no-network --virtual .haproxy-rundeps $runDeps; \
+ apk del --no-network .build-deps; \
+ \
+# smoke test
+ haproxy -v
+
+# https://www.haproxy.org/download/1.8/doc/management.txt
+# "4. Stopping and restarting HAProxy"
+# "when the SIGTERM signal is sent to the haproxy process, it immediately quits and all established connections are closed"
+# "graceful stop is triggered when the SIGUSR1 signal is sent to the haproxy process"
+STOPSIGNAL SIGUSR1
+
+COPY docker-entrypoint.sh /
+
+USER haproxy
+
+# https://github.com/docker-library/haproxy/issues/200
+WORKDIR /var/lib/haproxy
+
+ENTRYPOINT ["/docker-entrypoint.sh"]
+CMD ["haproxy", "-f", "/usr/local/etc/haproxy/haproxy.cfg"]
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..d159169
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,339 @@
+ GNU GENERAL PUBLIC LICENSE
+ Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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+ Gnomovision version 69, Copyright (C) year name of author
+ Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+ This is free software, and you are welcome to redistribute it
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+The hypothetical commands `show w' and `show c' should show the appropriate
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+ `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+ <signature of Ty Coon>, 1 April 1989
+ Ty Coon, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs. If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library. If this is what you want to do, use the GNU Lesser General
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diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..5434c3b
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,12 @@
+MUTABLE_VERSION ?= latest
+VERSION ?= $(shell git rev-parse --short HEAD)
+
+IMAGE_INTERNAL := docker-registry.corp.avm99963.com/twix
+
+docker-prod: Dockerfile
+ docker build --force-rm -f Dockerfile --tag=$(IMAGE_INTERNAL):$(VERSION) .
+ docker tag $(IMAGE_INTERNAL):$(VERSION) $(IMAGE_INTERNAL):$(MUTABLE_VERSION)
+
+push-prod: docker-prod
+ docker push $(IMAGE_INTERNAL):$(VERSION)
+ docker push $(IMAGE_INTERNAL):$(MUTABLE_VERSION)
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..0409027
--- /dev/null
+++ b/README.md
@@ -0,0 +1,20 @@
+# twix
+
+Docker image of HAProxy with support for SSLv3.
+
+This is used for my [homelab twix reverse proxy][homelab-twix]: a reverse proxy
+which allows my (old) devices which don't support TLS to communicate with some
+services internally.
+
+## Warning
+
+[The SSLv3 protocol is insecure][disable-ssl3]. You should **not** run this
+server publicly or in production.
+
+## Acknowledgements
+
+The Dockerfile is an adaptation of the Docker image available at
+https://github.com/docker-library/haproxy.
+
+[homelab-twix]: http://shortn/homelab-twix-role
+[disable-ssl3]: https://disablessl3.com/
diff --git a/docker-entrypoint.sh b/docker-entrypoint.sh
new file mode 100755
index 0000000..8b2093b
--- /dev/null
+++ b/docker-entrypoint.sh
@@ -0,0 +1,17 @@
+#!/bin/sh
+set -e
+
+# first arg is `-f` or `--some-option`
+if [ "${1#-}" != "$1" ]; then
+ set -- haproxy "$@"
+fi
+
+if [ "$1" = 'haproxy' ]; then
+ shift # "haproxy"
+ # if the user wants "haproxy", let's add a couple useful flags
+ # -W -- "master-worker mode" (similar to the old "haproxy-systemd-wrapper"; allows for reload via "SIGUSR2")
+ # -db -- disables background mode
+ set -- haproxy -W -db "$@"
+fi
+
+exec "$@"