Adds cgit docker image and configuration files

Author: LuqueDaniel

40-fcgiwrap.sh

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+#!/bin/sh
+# Script to start a fcgiwrap socket. Loaded during Docker entrypoint.
+SOCKET_PATH=/run/fcgiwrap/fcgiwrap.sock
+
+echo "Starting fcgiwrap..."
+if [ -e "$SOCKET_PATH" ]; then
+    echo "Removing previous socket: $SOCKET_PATH"
+    rm $SOCKET_PATH
+fi
+
+echo "Waiting for fcgiwrap to create a socket..."
+/usr/bin/fcgiwrap -s unix:$SOCKET_PATH &
+while [ ! -e "$SOCKET_PATH" ]; do
+    sleep 2
+done
+chmod 766 $SOCKET_PATH
+
+exit 0;

Dockerfile

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+# Image to build cgit
+FROM alpine:latest AS build
+
+ARG CGIT_REPO_URL=https://git.zx2c4.com/cgit
+
+# To avoid conflict: undeclared REG_STARTEND compiling git with musl
+# https://github.com/git/git/blob/23b219f8e3f2adfb0441e135f0a880e6124f766c/git-compat-util.h#L1279-L1281
+ENV NO_REGEX=NeedsStartEnd
+
+RUN apk add --no-cache \
+    git \
+    make \
+    gcc \
+    musl-dev \
+    musl-libintl \
+    openssl-dev \
+    zlib-dev \
+    luajit
+
+RUN git clone --depth 1 $CGIT_REPO_URL /opt/cgit-repo
+WORKDIR /opt/cgit-repo
+COPY ["cgit_build.conf", "/opt/cgit-repo/cgit.conf"]
+RUN git submodule init && git submodule update
+RUN make && make install
+
+
+# Image to run cgit with NGINX and fcgiwrap
+FROM nginx:alpine
+
+ARG CGIT_CACHE_PATH=/opt/cgit/cache
+
+RUN apk add --no-cache \
+    fcgiwrap \
+    git \
+    groff \
+    python3 \
+    py3-pip \
+    py3-pygments \
+    py3-markdown \
+    luajit \
+    && ln -sf python3 /usr/bin/python \
+    && python -m pip install rst2html
+
+# Nginx cgit config
+COPY ["cgit_nginx.conf", "/etc/nginx/conf.d/default.conf"]
+
+# Cgit setup
+COPY --from=build /opt/cgit /opt/cgit
+COPY ["cgitrc", "/opt/cgit/"]
+COPY ["./filters/html-converters/rst2html", "/opt/cgit/filters/html-converters/"]
+RUN mkdir -p $CGIT_CACHE_PATH
+
+COPY ["40-fcgiwrap.sh", "/docker-entrypoint.d/"]
+VOLUME ["/opt/git"]
+EXPOSE 80

cgit_build.conf

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+CGIT_SCRIPT_PATH = /opt/cgit/app
+CGIT_CONFIG = /opt/cgit/cgitrc
+CACHE_ROOT = /opt/cgit/cache
+prefix = /opt/cgit
+libdir = $(prefix)
+filterdir = $(libdir)/filters

cgit_nginx.conf

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+server {
+    listen 80;
+    listen [::]:80;
+    server_name localhost;
+
+    root /opt/cgit/app;
+    try_files $uri @cgit;
+
+    access_log /var/log/nginx/cgit-access.log;
+    error_log /var/log/nginx/cgit-error.log;
+
+    # Serve static files
+    location ~* \.(css|png|ico)$ {
+        root /opt/cgit/app;
+        expires 30d;
+    }
+
+    location @cgit {
+        include fastcgi_params;
+        fastcgi_param SCRIPT_FILENAME /opt/cgit/app/cgit.cgi;
+        fastcgi_param PATH_INFO $uri;
+        fastcgi_param QUERY_STRING $args;
+        fastcgi_param HTTP_HOST $server_name;
+        fastcgi_pass unix:/run/fcgiwrap/fcgiwrap.sock;
+    }
+}

cgitrc

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+# cigit documentation: https://git.zx2c4.com/cgit/tree/cgitrc.5.txt
+# General
+root-title=Git Repository Browser
+virtual-root=/
+robots=noindex, nofollow
+enable-commit-graph=1
+enable-filter-overrides=1
+enable-index-links=1
+enable-log-filecount=1
+enable-log-linecount=1
+enable-subject-links=1
+max-stats=year
+noplainemail=1
+enable-blame=1
+enable-follow-links=1
+enable-html-serving=1
+enable-remote-branches=1
+enable-index-owner=0
+# Use pygments for syntax highlighting
+source-filter=/opt/cgit/filters/syntax-highlighting.py
+about-filter=/opt/cgit/filters/about-formatting.sh
+commit-filter=/opt/cgit/filters/commit-links.sh
+email-filter=/opt/cgit/filters/email-gravatar.py
+
+# Cache
+cache-size=40
+cache-root=/opt/cgit/cache
+cache-dynamic-ttl=10
+cache-repo-ttl=10
+cache-root-ttl=10
+cache-scanrc-ttl=10
+cache-static-ttl=10
+
+# Repos
+remove-suffix=1
+enable-git-config=1
+# requires python-markdown
+readme=:README.md
+# requires rst2html
+readme=:README.rst
+readme=:README.txt
+readme=:README.html
+scan-path=/opt/git/
+# List of repositories can be included
+#include=/opt/cgit/cgitrepos