Docker版本Omnibus Gitlab 加Lets Encrypt免费SSL一键搭建

首先使用下列文件gitlab_run.sh生成LetsEncrypt的certificate。

来源：

https://github.com/flasheryu/docker-letsencrypt-nginx-proxy-companion-examples

https://github.com/alastaircoote/docker-letsencrypt-nginx-proxy-companion

 

前提：

将你的域名解析到当前服务器公网ip地址，

比如本文中的dockeryu.com, 解析生效后继续以下操作。

 

有一个bug，先用以下命令fix:

mkdir -p /volumes/proxy/templates/
vi /volumes/proxy/templates/nginx.tmpl

 

{{ 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 }}
            # {{ .Container.Name }}
            server {{ .Address.IP }}:{{ .Address.Port }};
        {{ end }}
    {{ else }}
        # {{ .Container.Name }}
        server {{ .Container.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;
{{ end }}

server {
    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_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 $container := $containers }}
    {{ $addrLen := len $container.Addresses }}
    {{/* If only 1 port exposed, use that */}}
    {{ if eq $addrLen 1 }}
        {{ $address := index $container.Addresses 0 }}
        {{ template "upstream" (dict "Container" $container "Address" $address) }}
    {{/* 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) }}
    {{ 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 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 := replace $vhostCert ".crt" "" -1 }}
{{ $vhostCert := replace $vhostCert ".key" "" -1 }}

{{/* Use the cert specifid on the container or fallback to the best vhost match */}}
{{ $cert := (coalesce $certName $vhostCert) }}

{{ if (and (ne $cert "") (exists (printf "/etc/nginx/certs/%s.crt" $cert)) (exists (printf "/etc/nginx/certs/%s.key" $cert))) }}

server {
    server_name {{ $host }};
    listen 80 {{ $default_server }};
    access_log /var/log/nginx/access.log vhost;
    return 301 https://$host$request_uri;
}

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-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-DSS-AES128-GCM-SHA256:kEDH+AESGCM:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-DSS-AES128-SHA256:DHE-RSA-AES256-SHA256:DHE-DSS-AES256-SHA:DHE-RSA-AES256-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:AES:CAMELLIA:DES-CBC3-SHA:!aNULL:!eNULL:!EXPORT:!DES:!RC4:!MD5:!PSK:!aECDH:!EDH-DSS-DES-CBC3-SHA:!EDH-RSA-DES-CBC3-SHA:!KRB5-DES-CBC3-SHA;

    ssl_prefer_server_ciphers on;
    ssl_session_timeout 5m;
    ssl_session_cache shared:SSL:50m;

    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 }}

    add_header Strict-Transport-Security "max-age=31536000";

    {{ 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 {{ trim $proto }}://{{ trim $host }};
        {{ 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 }}
    }
}
{{ else }}

server {
    server_name {{ $host }};
    listen 80 {{ $default_server }};
    access_log /var/log/nginx/access.log vhost;

    {{ 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 {{ trim $proto }}://{{ trim $host }};
        {{ 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 (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 503;

    ssl_certificate /etc/nginx/certs/default.crt;
    ssl_certificate_key /etc/nginx/certs/default.key;
}
{{ end }}

{{ end }}
{{ end }}

 

接下来，新建以下shell脚本并运行：

#!/bin/bash
# This example will run a basic nginx server provisionned with an index.html file
# Make sure to replace "site.example.com" with a public accessible domain poiting to the server you will run this on.

# This nginx container will get a configuration generated by the docker-gen instance and act as a reverse-proxy
echo "Starting nginx instance..."
docker run -d -p 80:80 -p 443:443\
    --name nginx \
    -v /etc/nginx/conf.d  \
    -v /etc/nginx/vhost.d \
    -v /usr/share/nginx/html \
    -v $(pwd)/../../volumes/proxy/certs:/etc/nginx/certs:ro \
    nginx

# This nginx-gen container using the docker-gen image will generate a 'default.conf' file from the 'nginx.tmpl' located in volumes/proxy/templates.
echo "Starting docker-gen instance..."
docker run -d \
    --name nginx-gen \
    --volumes-from nginx \
    -v $(pwd)/../../volumes/proxy/templates:/etc/docker-gen/templates:ro \
    -v /var/run/docker.sock:/tmp/docker.sock:ro \
    jwilder/docker-gen \
    -notify-sighup nginx -watch -only-exposed -wait 5s:30s /etc/docker-gen/templates/nginx.tmpl /etc/nginx/conf.d/default.conf


echo "Starting letsencrypt-nginx-proxy-companion..."
docker run -d \
    -e "NGINX_DOCKER_GEN_CONTAINER=nginx-gen" \
    --volumes-from nginx \
    -v $(pwd)/../../volumes/proxy/certs:/etc/nginx/certs:rw \
    -v /var/run/docker.sock:/var/run/docker.sock:ro \
    jrcs/letsencrypt-nginx-proxy-companion

#   This original repo stopped maintaining and now have bugs, and error is as follows:
#   Deserialization error: Wrong directory
#   jrcs/letsencrypt-nginx-proxy-companion
#　　alastaircoote/docker-letsencrypt-nginx-proxy-companion

# This an example service that will get picked up and served by the reverse proxy.
# Make sure you change all the default values in this file and in volumes/examples/simple-site
echo "Starting simple-site nginx example..."
docker run -d \
    --name simple-site \
    -e "VIRTUAL_HOST=dockeryu.com" \
    -e "LETSENCRYPT_HOST=dockeryu.com" \
    -e "LETSENCRYPT_EMAIL=yugq@gityu.com" \
    -v $(pwd)/../../volumes/examples/simple-site/conf.d/:/etc/nginx/conf.d \
    nginx

 

注意：需要用你自己网站的域名，替换以上脚本中最后一个命令中的dockeryu.com.

使用自己的邮箱替换yugq@gityu.com的邮箱地址。

 

然后视网络情况需耐心等待3-5分钟，待/volumes/proxy/certs下生成certs。

 

此时：

1.若是首次申请证书搭建gitlab，则删除所有docker。

docker stop $(docker ps -a -q)

docker rm $(docker ps -a -q)

并使用如下命令一键搭建带有LetsEncrypt免费SSL版本的Omnibus版本Gitlab。

docker run --detach --hostname dockeryu.com --env GITLAB_OMNIBUS_CONFIG="registry_external_url 'https://dockeryu.com:4040';registry_nginx['ssl_certificate']='/etc/letsencrypt/live/dockeryu.com/dockeryu.com.crt';registry_nginx['ssl_certificate_key']='/etc/letsencrypt/live/dockeryu.com/dockeryu.com.key';external_url 'https://dockeryu.com/';nginx['redirect_http_to_https']=true;nginx['ssl_certificate']='/etc/letsencrypt/live/dockeryu.com/dockeryu.com.crt';nginx['ssl_certificate_key']='/etc/letsencrypt/live/dockeryu.com/dockeryu.com.key';" --publish 443:443 --publish 80:80 --publish 222:22 --publish 4040:4040 --name gitlab --restart always --volume /srv/gitlab/config:/etc/gitlab --volume /srv/gitlab/logs:/var/log/gitlab --volume /srv/gitlab/data:/var/opt/gitlab --volume /volumes/proxy/certs:/etc/letsencrypt/live/dockeryu.com --volume /var/run/docker.sock:/var/run/docker.sock --volume $(which docker):/usr/bin/docker gitlab/gitlab-ce

 

2.若是证书续期，即此前已经搭建过带certbot(LetsEncrypt)的gitlab，则重启gitlab服务即可：

docker restart gitlab

 

两分钟后gitlab可启动成功。

 

注意，此时如果出错，按照提示，使用以下命令解决：

docker exec -it gitlab update-permissions

 

Gitlab更多配置使用方法参考：

http://docs.gitlab.com/omnibus/docker/

 

注意，使用LetsEncrypt可能超限(limit rates,20次一周)，具体参见：

https://letsencrypt.org/docs/rate-limits/