docker: add a frontend nginx image

At first, I built a custom image at https://egort.name/. It had a rather
long development history, and I just copied the files from there.

10 files changed, 435 insertions, 0 deletions

diff --git a/docker-compose.yml b/docker-compose.yml
new file mode 100644
index 0000000..beba3a6
--- /dev/null
+++ b/docker-compose.yml
@@ -0,0 +1,30 @@
+version: '3.7'
+
+services:
+  backend:
+    build:
+      context: .
+    environment:
+      # Every 3 hours:
+      SCHEDULE: '0 */3 * * *'
+    image: egortensin/cgitize:latest
+    logging:
+      driver: journald
+    restart: unless-stopped
+    volumes:
+      - ./examples/docker:/etc/cgitize:ro
+      - repositories:/var/tmp/cgitize
+  frontend:
+    build:
+      context: ./docker/frontend
+    image: egortensin/cgitize-frontend:latest
+    logging:
+      driver: journald
+    ports:
+      - '127.0.0.1:80:80'
+    restart: unless-stopped
+    volumes:
+      - repositories:/mnt/cgitize:ro
+
+volumes:
+  repositories:
diff --git a/docker/frontend/Dockerfile b/docker/frontend/Dockerfile
new file mode 100644
index 0000000..5fb1960
--- /dev/null
+++ b/docker/frontend/Dockerfile
@@ -0,0 +1,19 @@
+FROM nginx:1
+
+RUN export DEBIAN_FRONTEND=noninteractive && \
+    runtime_deps='cgit cmark-gfm fcgiwrap tini' && \
+    apt-get update && \
+    apt-get install -y --no-install-recommends $runtime_deps && \
+    # Install the latest Pygments (so that it would highlight CMakeLists.txt, etc.):
+    apt-get install -y --no-install-recommends python3-pip && \
+    pip3 install --no-cache-dir pygments~=2.0 && \
+    # Replace the theme with the one I like better:
+    grep -q -F -- "style='pastie'" /usr/lib/cgit/filters/syntax-highlighting.py && \
+    sed -i -e "s/style='pastie'/style='vs'/" -- /usr/lib/cgit/filters/syntax-highlighting.py
+
+COPY ["etc/", "/etc/"]
+COPY ["usr/", "/usr/"]
+COPY ["cmd.sh", "/"]
+
+ENTRYPOINT ["/usr/bin/tini", "--"]
+CMD ["/cmd.sh"]
diff --git a/docker/frontend/cmd.sh b/docker/frontend/cmd.sh
new file mode 100755
index 0000000..4a769f6
--- /dev/null
+++ b/docker/frontend/cmd.sh
@@ -0,0 +1,13 @@
+#!/usr/bin/env bash
+
+set -o errexit -o nounset -o pipefail
+
+spawn-fcgi \
+    -u nginx \
+    -g nginx \
+    -M 0755 \
+    -F 10 \
+    -s /run/fcgiwrap.sock \
+    /usr/sbin/fcgiwrap
+
+exec nginx -g 'daemon off;'
diff --git a/docker/frontend/etc/cgit/cgitrc b/docker/frontend/etc/cgit/cgitrc
new file mode 100644
index 0000000..e12b2f4
--- /dev/null
+++ b/docker/frontend/etc/cgit/cgitrc
@@ -0,0 +1,4 @@
+include=/etc/cgit/common
+
+root-title=My git repositories
+root-desc=Synced using https://github.com/egor-tensin/cgitize
diff --git a/docker/frontend/etc/cgit/common b/docker/frontend/etc/cgit/common
new file mode 100644
index 0000000..4fdf2a5
--- /dev/null
+++ b/docker/frontend/etc/cgit/common
@@ -0,0 +1,36 @@
+css=/cgit/cgit.css
+logo=/cgit/cgit.png
+favicon=/cgit/favicon.ico
+
+mimetype.bmp=image/bmp
+mimetype.gif=image/gif
+mimetype.html=text/html
+mimetype.jpg=image/jpeg
+mimetype.jpeg=image/jpeg
+mimetype.pdf=application/pdf
+mimetype.png=image/png
+mimetype.svg=image/svg+xml
+
+enable-blame=1
+enable-commit-graph=1
+enable-follow-links=1
+enable-index-links=1
+enable-index-owner=0
+enable-subject-links=1
+max-blob-size=10000
+max-repo-count=100
+max-stats=year
+remove-suffix=1
+snapshots=tar.gz tar.bz2 zip
+
+about-filter=/usr/lib/cgit/filters/about-formatting.sh
+readme=:README.md
+readme=:readme.md
+readme=:README.txt
+readme=:readme.txt
+readme=:README
+readme=:readme
+
+source-filter=/usr/lib/cgit/filters/syntax-highlighting.py
+
+scan-path=/mnt/cgitize
diff --git a/docker/frontend/etc/nginx/conf.d/default.conf b/docker/frontend/etc/nginx/conf.d/default.conf
new file mode 100644
index 0000000..4dd9402
--- /dev/null
+++ b/docker/frontend/etc/nginx/conf.d/default.conf
@@ -0,0 +1,24 @@
+server {
+    listen 80 default_server;
+    listen [::]:80 default_server;
+    server_name _;
+
+    location / {
+        index index.html;
+    }
+
+    location /cgit/ {
+        alias /usr/share/cgit/;
+    }
+
+    location /git/ {
+        include fastcgi_params;
+        fastcgi_pass unix:/run/fcgiwrap.sock;
+
+        fastcgi_param CGIT_CONFIG /etc/cgit/cgitrc;
+        fastcgi_param SCRIPT_FILENAME /usr/lib/cgit/cgit.cgi;
+
+        fastcgi_split_path_info ^(/git/?)(.+)$;
+        fastcgi_param PATH_INFO $fastcgi_path_info;
+    }
+}
diff --git a/docker/frontend/usr/lib/cgit/filters/about-formatting.sh b/docker/frontend/usr/lib/cgit/filters/about-formatting.sh
new file mode 100755
index 0000000..b352e31
--- /dev/null
+++ b/docker/frontend/usr/lib/cgit/filters/about-formatting.sh
@@ -0,0 +1,13 @@
+#!/usr/bin/env dash
+
+script_dir="$( dirname -- "$0" )"
+cd -- "$script_dir/html-converters/"
+
+path="$1"
+path="$( echo "$1" | tr '[:upper:]' '[:lower:]' )"
+
+case "$path" in
+    *.markdown|*.mdown|*.md|*.mkd)
+        exec ./md2html
+        ;;
+esac
diff --git a/docker/frontend/usr/lib/cgit/filters/html-converters/.gitattributes b/docker/frontend/usr/lib/cgit/filters/html-converters/.gitattributes
new file mode 100644
index 0000000..3287fcc
--- /dev/null
+++ b/docker/frontend/usr/lib/cgit/filters/html-converters/.gitattributes
@@ -0,0 +1 @@
+md2html text eol=lf
diff --git a/docker/frontend/usr/lib/cgit/filters/html-converters/md2html b/docker/frontend/usr/lib/cgit/filters/html-converters/md2html
new file mode 100755
index 0000000..ee3768b
--- /dev/null
+++ b/docker/frontend/usr/lib/cgit/filters/html-converters/md2html
@@ -0,0 +1,289 @@
+#!/usr/bin/env dash
+
+cat <<EOF
+<style>
+.markdown-body {
+    font-size: 14px;
+    line-height: 1.6;
+    overflow: hidden;
+}
+.markdown-body>*:first-child {
+    margin-top: 0 !important;
+}
+.markdown-body>*:last-child {
+    margin-bottom: 0 !important;
+}
+.markdown-body a.absent {
+    color: #c00;
+}
+.markdown-body a.anchor {
+    display: block;
+    padding-left: 30px;
+    margin-left: -30px;
+    cursor: pointer;
+    position: absolute;
+    top: 0;
+    left: 0;
+    bottom: 0;
+}
+.markdown-body h1, .markdown-body h2, .markdown-body h3, .markdown-body h4, .markdown-body h5, .markdown-body h6 {
+    margin: 20px 0 10px;
+    padding: 0;
+    font-weight: bold;
+    -webkit-font-smoothing: antialiased;
+    cursor: text;
+    position: relative;
+}
+.markdown-body h1 .mini-icon-link, .markdown-body h2 .mini-icon-link, .markdown-body h3 .mini-icon-link, .markdown-body h4 .mini-icon-link, .markdown-body h5 .mini-icon-link, .markdown-body h6 .mini-icon-link {
+    display: none;
+    color: #000;
+}
+.markdown-body h1:hover a.anchor, .markdown-body h2:hover a.anchor, .markdown-body h3:hover a.anchor, .markdown-body h4:hover a.anchor, .markdown-body h5:hover a.anchor, .markdown-body h6:hover a.anchor {
+    text-decoration: none;
+    line-height: 1;
+    padding-left: 0;
+    margin-left: -22px;
+    top: 15%;
+}
+.markdown-body h1:hover a.anchor .mini-icon-link, .markdown-body h2:hover a.anchor .mini-icon-link, .markdown-body h3:hover a.anchor .mini-icon-link, .markdown-body h4:hover a.anchor .mini-icon-link, .markdown-body h5:hover a.anchor .mini-icon-link, .markdown-body h6:hover a.anchor .mini-icon-link {
+    display: inline-block;
+}
+div#cgit .markdown-body h1 a.toclink, div#cgit .markdown-body h2 a.toclink, div#cgit .markdown-body h3 a.toclink, div#cgit .markdown-body h4 a.toclink, div#cgit .markdown-body h5 a.toclink, div#cgit .markdown-body h6 a.toclink {
+    color: black;
+}
+.markdown-body h1 tt, .markdown-body h1 code, .markdown-body h2 tt, .markdown-body h2 code, .markdown-body h3 tt, .markdown-body h3 code, .markdown-body h4 tt, .markdown-body h4 code, .markdown-body h5 tt, .markdown-body h5 code, .markdown-body h6 tt, .markdown-body h6 code {
+    font-size: inherit;
+}
+.markdown-body h1 {
+    font-size: 28px;
+    color: #000;
+}
+.markdown-body h2 {
+    font-size: 24px;
+    border-bottom: 1px solid #ccc;
+    color: #000;
+}
+.markdown-body h3 {
+    font-size: 18px;
+}
+.markdown-body h4 {
+    font-size: 16px;
+}
+.markdown-body h5 {
+    font-size: 14px;
+}
+.markdown-body h6 {
+    color: #777;
+    font-size: 14px;
+}
+.markdown-body p, .markdown-body blockquote, .markdown-body ul, .markdown-body ol, .markdown-body dl, .markdown-body table, .markdown-body pre {
+    margin: 15px 0;
+}
+.markdown-body hr {
+    background: transparent url("/dirty-shade.png") repeat-x 0 0;
+    border: 0 none;
+    color: #ccc;
+    height: 4px;
+    padding: 0;
+}
+.markdown-body>h2:first-child, .markdown-body>h1:first-child, .markdown-body>h1:first-child+h2, .markdown-body>h3:first-child, .markdown-body>h4:first-child, .markdown-body>h5:first-child, .markdown-body>h6:first-child {
+    margin-top: 0;
+    padding-top: 0;
+}
+.markdown-body a:first-child h1, .markdown-body a:first-child h2, .markdown-body a:first-child h3, .markdown-body a:first-child h4, .markdown-body a:first-child h5, .markdown-body a:first-child h6 {
+    margin-top: 0;
+    padding-top: 0;
+}
+.markdown-body h1+p, .markdown-body h2+p, .markdown-body h3+p, .markdown-body h4+p, .markdown-body h5+p, .markdown-body h6+p {
+    margin-top: 0;
+}
+.markdown-body li p.first {
+    display: inline-block;
+}
+.markdown-body ul, .markdown-body ol {
+    padding-left: 30px;
+}
+.markdown-body ul.no-list, .markdown-body ol.no-list {
+    list-style-type: none;
+    padding: 0;
+}
+.markdown-body ul li>:first-child, .markdown-body ul li ul:first-of-type, .markdown-body ul li ol:first-of-type, .markdown-body ol li>:first-child, .markdown-body ol li ul:first-of-type, .markdown-body ol li ol:first-of-type {
+    margin-top: 0px;
+}
+.markdown-body ul li p:last-of-type, .markdown-body ol li p:last-of-type {
+    margin-bottom: 0;
+}
+.markdown-body ul ul, .markdown-body ul ol, .markdown-body ol ol, .markdown-body ol ul {
+    margin-bottom: 0;
+}
+.markdown-body dl {
+    padding: 0;
+}
+.markdown-body dl dt {
+    font-size: 14px;
+    font-weight: bold;
+    font-style: italic;
+    padding: 0;
+    margin: 15px 0 5px;
+}
+.markdown-body dl dt:first-child {
+    padding: 0;
+}
+.markdown-body dl dt>:first-child {
+    margin-top: 0px;
+}
+.markdown-body dl dt>:last-child {
+    margin-bottom: 0px;
+}
+.markdown-body dl dd {
+    margin: 0 0 15px;
+    padding: 0 15px;
+}
+.markdown-body dl dd>:first-child {
+    margin-top: 0px;
+}
+.markdown-body dl dd>:last-child {
+    margin-bottom: 0px;
+}
+.markdown-body blockquote {
+    border-left: 4px solid #DDD;
+    padding: 0 15px;
+    color: #777;
+}
+.markdown-body blockquote>:first-child {
+    margin-top: 0px;
+}
+.markdown-body blockquote>:last-child {
+    margin-bottom: 0px;
+}
+.markdown-body table th {
+    font-weight: bold;
+}
+.markdown-body table th, .markdown-body table td {
+    border: 1px solid #ccc;
+    padding: 6px 13px;
+}
+.markdown-body table tr {
+    border-top: 1px solid #ccc;
+    background-color: #fff;
+}
+.markdown-body table tr:nth-child(2n) {
+    background-color: #f8f8f8;
+}
+.markdown-body img {
+    max-width: 100%;
+    -moz-box-sizing: border-box;
+    box-sizing: border-box;
+}
+.markdown-body span.frame {
+    display: block;
+    overflow: hidden;
+}
+.markdown-body span.frame>span {
+    border: 1px solid #ddd;
+    display: block;
+    float: left;
+    overflow: hidden;
+    margin: 13px 0 0;
+    padding: 7px;
+    width: auto;
+}
+.markdown-body span.frame span img {
+    display: block;
+    float: left;
+}
+.markdown-body span.frame span span {
+    clear: both;
+    color: #333;
+    display: block;
+    padding: 5px 0 0;
+}
+.markdown-body span.align-center {
+    display: block;
+    overflow: hidden;
+    clear: both;
+}
+.markdown-body span.align-center>span {
+    display: block;
+    overflow: hidden;
+    margin: 13px auto 0;
+    text-align: center;
+}
+.markdown-body span.align-center span img {
+    margin: 0 auto;
+    text-align: center;
+}
+.markdown-body span.align-right {
+    display: block;
+    overflow: hidden;
+    clear: both;
+}
+.markdown-body span.align-right>span {
+    display: block;
+    overflow: hidden;
+    margin: 13px 0 0;
+    text-align: right;
+}
+.markdown-body span.align-right span img {
+    margin: 0;
+    text-align: right;
+}
+.markdown-body span.float-left {
+    display: block;
+    margin-right: 13px;
+    overflow: hidden;
+    float: left;
+}
+.markdown-body span.float-left span {
+    margin: 13px 0 0;
+}
+.markdown-body span.float-right {
+    display: block;
+    margin-left: 13px;
+    overflow: hidden;
+    float: right;
+}
+.markdown-body span.float-right>span {
+    display: block;
+    overflow: hidden;
+    margin: 13px auto 0;
+    text-align: right;
+}
+.markdown-body code, .markdown-body tt {
+    margin: 0 2px;
+    padding: 0px 5px;
+    border: 1px solid #eaeaea;
+    background-color: #f8f8f8;
+    border-radius: 3px;
+}
+.markdown-body code {
+    white-space: nowrap;
+}
+.markdown-body pre>code {
+    margin: 0;
+    padding: 0;
+    white-space: pre;
+    border: none;
+    background: transparent;
+}
+.markdown-body .highlight pre, .markdown-body pre {
+    background-color: #f8f8f8;
+    border: 1px solid #ccc;
+    font-size: 13px;
+    line-height: 19px;
+    overflow: auto;
+    padding: 6px 10px;
+    border-radius: 3px;
+}
+.markdown-body pre code, .markdown-body pre tt {
+    margin: 0;
+    padding: 0;
+    background-color: transparent;
+    border: none;
+}
+</style>   
+EOF
+
+echo "<div class='markdown-body'>"
+cmark-gfm --extension table --extension autolink
+echo "</div>"
diff --git a/examples/docker/cgitize.toml b/examples/docker/cgitize.toml
new file mode 100644
index 0000000..43297c8
--- /dev/null
+++ b/examples/docker/cgitize.toml
@@ -0,0 +1,6 @@
+clone_via_ssh = false
+
+[github]
+
+[github.users.me]
+name = "egor-tensin"