diff --git a/Dockerfile b/Dockerfile index 31bacd6..71c6dbe 100644 --- a/Dockerfile +++ b/Dockerfile @@ -1,34 +1,39 @@ FROM resin/rpi-raspbian MAINTAINER Ludovic Roguet -# libgcrypt20-dev -RUN \ - apt-get update && \ - apt-get install -y -q --no-install-recommends ca-certificates git mercurial golang nginx wget && \ - apt-get clean && \ - rm -rf /var/lib/apt/lists/* - -RUN echo "daemon off;" >> /etc/nginx/nginx.conf - -# Fix for long server names -RUN sed -i 's/# server_names_hash_bucket/server_names_hash_bucket/g' /etc/nginx/nginx.conf - -# Install docker-gen -ENV DOCKER_GEN_VERSION 0.7.0 -RUN \ - wget https://github.com/jwilder/docker-gen/releases/download/0.7.0/docker-gen-linux-armhf-$DOCKER_GEN_VERSION.tar.gz && \ - tar -C /usr/local/bin -xvzf docker-gen-linux-armhf-$DOCKER_GEN_VERSION.tar.gz && \ - rm /docker-gen-linux-armhf-$DOCKER_GEN_VERSION.tar.gz +# Install wget and install/updates certificates +RUN apt-get update \ + && apt-get install -y -q --no-install-recommends \ + ca-certificates \ + git \ + mercurial \ + golang \ + nginx \ + wget \ + && apt-get clean \ + && rm -r /var/lib/apt/lists/* + +# Configure Nginx and apply fix for very long server names +RUN echo "daemon off;" >>/etc/nginx/nginx.conf \ + && sed -i 's/^http {/&\n server_names_hash_bucket_size 128;/g' /etc/nginx/nginx.conf # Install Forego ENV GOPATH /opt/go ENV PATH $PATH:$GOPATH/bin RUN go get -u github.com/ddollar/forego -ADD data/ /opt/app -WORKDIR /opt/app +ENV DOCKER_GEN_VERSION 0.7.3 + +RUN wget https://github.com/jwilder/docker-gen/releases/download/$DOCKER_GEN_VERSION/docker-gen-linux-armhf-$DOCKER_GEN_VERSION.tar.gz \ + && tar -C /usr/local/bin -xvzf docker-gen-linux-armhf-$DOCKER_GEN_VERSION.tar.gz \ + && rm /docker-gen-linux-armhf-$DOCKER_GEN_VERSION.tar.gz + +COPY data /app/ +WORKDIR /app/ -EXPOSE 80 ENV DOCKER_HOST unix:///tmp/docker.sock -CMD ["forego", "start", "-r"] \ No newline at end of file +VOLUME ["/etc/nginx/certs"] + +ENTRYPOINT ["/app/docker-entrypoint.sh"] +CMD ["forego", "start", "-r"] diff --git a/data/Procfile b/data/Procfile index 0abafbc..0fa56e7 100644 --- a/data/Procfile +++ b/data/Procfile @@ -1,2 +1,2 @@ nginx: nginx -dockergen: docker-gen -watch -only-exposed -notify "nginx -s reload" /opt/app/nginx.tmpl /etc/nginx/sites-enabled/default \ No newline at end of file +dockergen: docker-gen -watch -notify "nginx -s reload" /app/nginx.tmpl /etc/nginx/conf.d/default.conf diff --git a/data/docker-entrypoint.sh b/data/docker-entrypoint.sh new file mode 100755 index 0000000..6353314 --- /dev/null +++ b/data/docker-entrypoint.sh @@ -0,0 +1,22 @@ +#!/bin/bash +set -e + +# Warn if the DOCKER_HOST socket does not exist +if [[ $DOCKER_HOST == unix://* ]]; then + socket_file=${DOCKER_HOST#unix://} + if ! [ -S $socket_file ]; then + cat >&2 <<-EOT + ERROR: you need to share your Docker host socket with a volume at $socket_file + Typically you should run your jwilder/nginx-proxy with: \`-v /var/run/docker.sock:$socket_file:ro\` + See the documentation at http://git.io/vZaGJ + EOT + socketMissing=1 + fi +fi + +# If the user has run the default command and the socket doesn't exist, fail +if [ "$socketMissing" = 1 -a "$1" = forego -a "$2" = start -a "$3" = '-r' ]; then + exit 1 +fi + +exec "$@" diff --git a/data/nginx.tmpl b/data/nginx.tmpl index e19da90..9eb9520 100644 --- a/data/nginx.tmpl +++ b/data/nginx.tmpl @@ -1,53 +1,237 @@ +{{ $CurrentContainer := where $ "ID" .Docker.CurrentContainerID | first }} + +{{ define "upstream" }} + {{ if .Address }} + {{/* If we got the containers from swarm and this container's port is published to host, use host IP:PORT */}} + {{ if and .Container.Node.ID .Address.HostPort }} + # {{ .Container.Node.Name }}/{{ .Container.Name }} + server {{ .Container.Node.Address.IP }}:{{ .Address.HostPort }}; + {{/* If there is no swarm node or the port is not published on host, use container's IP:PORT */}} + {{ else if .Network }} + # {{ .Container.Name }} + server {{ .Network.IP }}:{{ .Address.Port }}; + {{ end }} + {{ else if .Network }} + # {{ .Container.Name }} + server {{ .Network.IP }} down; + {{ end }} +{{ end }} + +# If we receive X-Forwarded-Proto, pass it through; otherwise, pass along the +# scheme used to connect to this server +map $http_x_forwarded_proto $proxy_x_forwarded_proto { + default $http_x_forwarded_proto; + '' $scheme; +} + +# If we receive Upgrade, set Connection to "upgrade"; otherwise, delete any +# Connection header that may have been passed to this server +map $http_upgrade $proxy_connection { + default upgrade; + '' close; +} + +gzip_types text/plain text/css application/javascript application/json application/x-javascript text/xml application/xml application/xml+rss text/javascript; + +log_format vhost '$host $remote_addr - $remote_user [$time_local] ' + '"$request" $status $body_bytes_sent ' + '"$http_referer" "$http_user_agent"'; + +access_log off; + +{{ if (exists "/etc/nginx/proxy.conf") }} +include /etc/nginx/proxy.conf; +{{ else }} +# HTTP 1.1 support +proxy_http_version 1.1; +proxy_buffering off; +proxy_set_header Host $http_host; +proxy_set_header Upgrade $http_upgrade; +proxy_set_header Connection $proxy_connection; +proxy_set_header X-Real-IP $remote_addr; +proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; +proxy_set_header X-Forwarded-Proto $proxy_x_forwarded_proto; + +# Mitigate httpoxy attack (see README for details) +proxy_set_header Proxy ""; +{{ end }} + server { - listen 80 default_server; - server_name _; # This is just an invalid value which will never trigger on a real hostname. - error_log /proc/self/fd/2; - access_log /proc/self/fd/1; - return 503; + server_name _; # This is just an invalid value which will never trigger on a real hostname. + listen 80; + access_log /var/log/nginx/access.log vhost; + return 503; } +{{ if (and (exists "/etc/nginx/certs/default.crt") (exists "/etc/nginx/certs/default.key")) }} +server { + server_name _; # This is just an invalid value which will never trigger on a real hostname. + listen 443 ssl http2; + access_log /var/log/nginx/access.log vhost; + return 503; + + ssl_session_tickets off; + ssl_certificate /etc/nginx/certs/default.crt; + ssl_certificate_key /etc/nginx/certs/default.key; +} +{{ end }} + {{ range $host, $containers := groupByMulti $ "Env.VIRTUAL_HOST" "," }} + upstream {{ $host }} { -{{ range $index, $value := $containers }} - {{ $addrLen := len $value.Addresses }} - {{/* If only 1 port exposed, use that */}} - {{ if eq $addrLen 1 }} - {{ with $address := index $value.Addresses 0 }} - # {{$value.Name}} - server {{ $address.IP }}:{{ $address.Port }}; - {{ end }} - {{/* If more than one port exposed, use the one matching VIRTUAL_PORT env var */}} - {{ else if $value.Env.VIRTUAL_PORT }} - {{ range $i, $address := $value.Addresses }} - {{ if eq $address.Port $value.Env.VIRTUAL_PORT }} - # {{$value.Name}} - server {{ $address.IP }}:{{ $address.Port }}; - {{ end }} - {{ end }} - {{/* Else default to standard web port 80 */}} - {{ else }} - {{ range $i, $address := $value.Addresses }} - {{ if eq $address.Port "80" }} - # {{$value.Name}} - server {{ $address.IP }}:{{ $address.Port }}; - {{ end }} - {{ end }} - {{ end }} +{{ range $container := $containers }} + {{ $addrLen := len $container.Addresses }} + + {{ range $knownNetwork := $CurrentContainer.Networks }} + {{ range $containerNetwork := $container.Networks }} + {{ if eq $knownNetwork.Name $containerNetwork.Name }} + ## Can be connect with "{{ $containerNetwork.Name }}" network + + {{/* If only 1 port exposed, use that */}} + {{ if eq $addrLen 1 }} + {{ $address := index $container.Addresses 0 }} + {{ template "upstream" (dict "Container" $container "Address" $address "Network" $containerNetwork) }} + {{/* If more than one port exposed, use the one matching VIRTUAL_PORT env var, falling back to standard web port 80 */}} + {{ else }} + {{ $port := coalesce $container.Env.VIRTUAL_PORT "80" }} + {{ $address := where $container.Addresses "Port" $port | first }} + {{ template "upstream" (dict "Container" $container "Address" $address "Network" $containerNetwork) }} + {{ end }} + {{ end }} + {{ end }} + {{ end }} +{{ end }} +} + +{{ $default_host := or ($.Env.DEFAULT_HOST) "" }} +{{ $default_server := index (dict $host "" $default_host "default_server") $host }} + +{{/* Get the VIRTUAL_PROTO defined by containers w/ the same vhost, falling back to "http" */}} +{{ $proto := or (first (groupByKeys $containers "Env.VIRTUAL_PROTO")) "http" }} + +{{/* Get the HTTPS_METHOD defined by containers w/ the same vhost, falling back to "redirect" */}} +{{ $https_method := or (first (groupByKeys $containers "Env.HTTPS_METHOD")) "redirect" }} + +{{/* Get the first cert name defined by containers w/ the same vhost */}} +{{ $certName := (first (groupByKeys $containers "Env.CERT_NAME")) }} + +{{/* Get the best matching cert by name for the vhost. */}} +{{ $vhostCert := (closest (dir "/etc/nginx/certs") (printf "%s.crt" $host))}} + +{{/* vhostCert is actually a filename so remove any suffixes since they are added later */}} +{{ $vhostCert := trimSuffix ".crt" $vhostCert }} +{{ $vhostCert := trimSuffix ".key" $vhostCert }} + +{{/* Use the cert specified on the container or fallback to the best vhost match */}} +{{ $cert := (coalesce $certName $vhostCert) }} + +{{ $is_https := (and (ne $cert "") (exists (printf "/etc/nginx/certs/%s.crt" $cert)) (exists (printf "/etc/nginx/certs/%s.key" $cert))) }} + +{{ if $is_https }} + +{{ if eq $https_method "redirect" }} +server { + server_name {{ $host }}; + listen 80 {{ $default_server }}; + access_log /var/log/nginx/access.log vhost; + return 301 https://$host$request_uri; +} {{ end }} + +server { + server_name {{ $host }}; + listen 443 ssl http2 {{ $default_server }}; + access_log /var/log/nginx/access.log vhost; + + ssl_protocols TLSv1 TLSv1.1 TLSv1.2; + ssl_ciphers 'ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA:ECDHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-RSA-AES256-SHA256:DHE-RSA-AES256-SHA:ECDHE-ECDSA-DES-CBC3-SHA:ECDHE-RSA-DES-CBC3-SHA:EDH-RSA-DES-CBC3-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:DES-CBC3-SHA:!DSS'; + + ssl_prefer_server_ciphers on; + ssl_session_timeout 5m; + ssl_session_cache shared:SSL:50m; + ssl_session_tickets off; + + ssl_certificate /etc/nginx/certs/{{ (printf "%s.crt" $cert) }}; + ssl_certificate_key /etc/nginx/certs/{{ (printf "%s.key" $cert) }}; + + {{ if (exists (printf "/etc/nginx/certs/%s.dhparam.pem" $cert)) }} + ssl_dhparam {{ printf "/etc/nginx/certs/%s.dhparam.pem" $cert }}; + {{ end }} + + {{ if (ne $https_method "noredirect") }} + add_header Strict-Transport-Security "max-age=31536000"; + {{ end }} + + {{ if (exists (printf "/etc/nginx/vhost.d/%s" $host)) }} + include {{ printf "/etc/nginx/vhost.d/%s" $host }}; + {{ else if (exists "/etc/nginx/vhost.d/default") }} + include /etc/nginx/vhost.d/default; + {{ end }} + + location / { + {{ if eq $proto "uwsgi" }} + include uwsgi_params; + uwsgi_pass {{ trim $proto }}://{{ trim $host }}; + {{ else }} + proxy_pass {{ trim $proto }}://{{ trim $host }}; + {{ end }} + {{ if (exists (printf "/etc/nginx/htpasswd/%s" $host)) }} + auth_basic "Restricted {{ $host }}"; + auth_basic_user_file {{ (printf "/etc/nginx/htpasswd/%s" $host) }}; + {{ end }} + {{ if (exists (printf "/etc/nginx/vhost.d/%s_location" $host)) }} + include {{ printf "/etc/nginx/vhost.d/%s_location" $host}}; + {{ else if (exists "/etc/nginx/vhost.d/default_location") }} + include /etc/nginx/vhost.d/default_location; + {{ end }} + } } +{{ end }} + +{{ if or (not $is_https) (eq $https_method "noredirect") }} + server { - gzip_types text/plain text/css application/json application/x-javascript text/xml application/xml application/xml+rss text/javascript; + server_name {{ $host }}; + listen 80 {{ $default_server }}; + access_log /var/log/nginx/access.log vhost; - server_name {{ $host }}; - proxy_buffering off; - error_log /proc/self/fd/2; - access_log /proc/self/fd/1; + {{ if (exists (printf "/etc/nginx/vhost.d/%s" $host)) }} + include {{ printf "/etc/nginx/vhost.d/%s" $host }}; + {{ else if (exists "/etc/nginx/vhost.d/default") }} + include /etc/nginx/vhost.d/default; + {{ end }} - location / { - proxy_pass http://{{ $host }}; - proxy_http_version 1.1; - include /etc/nginx/proxy_params; - } + location / { + {{ if eq $proto "uwsgi" }} + include uwsgi_params; + uwsgi_pass {{ trim $proto }}://{{ trim $host }}; + {{ else }} + proxy_pass {{ trim $proto }}://{{ trim $host }}; + {{ end }} + {{ if (exists (printf "/etc/nginx/htpasswd/%s" $host)) }} + auth_basic "Restricted {{ $host }}"; + auth_basic_user_file {{ (printf "/etc/nginx/htpasswd/%s" $host) }}; + {{ end }} + {{ if (exists (printf "/etc/nginx/vhost.d/%s_location" $host)) }} + include {{ printf "/etc/nginx/vhost.d/%s_location" $host}}; + {{ else if (exists "/etc/nginx/vhost.d/default_location") }} + include /etc/nginx/vhost.d/default_location; + {{ end }} + } } + +{{ if (and (not $is_https) (exists "/etc/nginx/certs/default.crt") (exists "/etc/nginx/certs/default.key")) }} +server { + server_name {{ $host }}; + listen 443 ssl http2 {{ $default_server }}; + access_log /var/log/nginx/access.log vhost; + return 500; + + ssl_certificate /etc/nginx/certs/default.crt; + ssl_certificate_key /etc/nginx/certs/default.key; +} +{{ end }} + +{{ end }} {{ end }}