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Setup an nginx proxy for docker-compose

Roger Stringer / May 21, 2021

11 min read––– views

I have a few servers running nginx-proxy using docker-compose, you can bring new sites online quickly by simply adding the network, virtual host info and exposing port 80.

So I thought I'd start with setting that up.

  • Set up your server

  • I'm going to assume you've got docker and docker-compose installed and skip that initial step.

    First, we need to create a network

    docker network create nginx-proxy

    To get started, create a folder called sites and in that folder, create one called nginx-proxy.

    Next, we'll create docker-compose.yaml:

    docker-compose.yaml
    version: '3' services: nginx-proxy: image: nginx:alpine container_name: nginx-proxy ports: - "80:80" - "443:443" volumes: - ./volumes/conf:/etc/nginx/conf.d - ./volumes/vhost:/etc/nginx/vhost.d - ./volumes/html:/usr/share/nginx/html - ./volumes/certs:/etc/nginx/certs:ro - ./nginx-conf.conf:/etc/nginx/conf.d/nginx-conf.conf:ro - /var/run/docker.sock:/var/run/docker.sock:ro docker-gen: image: nginxproxy/docker-gen container_name: nginx-proxy-gen command: -notify-sighup nginx-proxy -watch /etc/docker-gen/templates/nginx.tmpl /etc/nginx/conf.d/default.conf volumes_from: - nginx-proxy volumes: - ./volumes/conf:/etc/nginx/conf.d - ./volumes/vhost:/etc/nginx/vhost.d - ./volumes/html:/usr/share/nginx/html - ./volumes/certs:/etc/nginx/certs - ./nginx.tmpl:/etc/docker-gen/templates/nginx.tmpl:ro - /var/run/docker.sock:/tmp/docker.sock:ro labels: - "com.github.jrcs.letsencrypt_nginx_proxy_companion.docker_gen" acme-companion: image: nginxproxy/acme-companion container_name: nginx-proxy-acme volumes_from: - nginx-proxy volumes: - ./volumes/conf:/etc/nginx/conf.d - ./volumes/vhost:/etc/nginx/vhost.d - ./volumes/html:/usr/share/nginx/html - ./volumes/certs:/etc/nginx/certs:rw - ./volumes/acme:/etc/acme.sh - /var/run/docker.sock:/var/run/docker.sock:ro networks: default: external: name: nginx-proxy

    Now, make a file called nginx-conf.conf:

    nginx-conf.conf
    client_max_body_size 512m;

    Along with a final file called nginx.tmpl:

    nginx.tmpl
    {{ $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 }} {{ if .Network.IP }} server {{ .Network.IP }} down; {{ else }} server 127.0.0.1 down; {{ end }} {{ 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 X-Forwarded-Port, pass it through; otherwise, pass along the # server port the client connected to map $http_x_forwarded_port $proxy_x_forwarded_port { default $http_x_forwarded_port; '' $server_port; } # 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; } # Apply fix for very long server names server_names_hash_bucket_size 128; # Default dhparam {{ if (exists "/etc/nginx/dhparam/dhparam.pem") }} ssl_dhparam /etc/nginx/dhparam/dhparam.pem; {{ end }} # Set appropriate X-Forwarded-Ssl header map $scheme $proxy_x_forwarded_ssl { default off; https on; } gzip_types text/plain text/css application/javascript application/json application/x-javascript text/xml application/xml application/xml+rss text/javascript; log_format vhost '$host $remote_addr - $remote_user [$time_local] ' '"$request" $status $body_bytes_sent ' '"$http_referer" "$http_user_agent"'; access_log off; {{ if $.Env.RESOLVERS }} resolver {{ $.Env.RESOLVERS }}; {{ end }} {{ 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; proxy_set_header X-Forwarded-Ssl $proxy_x_forwarded_ssl; proxy_set_header X-Forwarded-Port $proxy_x_forwarded_port; # Mitigate httpoxy attack (see README for details) proxy_set_header Proxy ""; {{ end }} {{ $enable_ipv6 := eq (or ($.Env.ENABLE_IPV6) "") "true" }} server { server_name _; # This is just an invalid value which will never trigger on a real hostname. listen 80; {{ if $enable_ipv6 }} listen [::]:80; {{ end }} 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; {{ if $enable_ipv6 }} listen [::]:443 ssl http2; {{ end }} 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" "," }} {{ $host := trim $host }} {{ $is_regexp := hasPrefix "~" $host }} {{ $upstream_name := when $is_regexp (sha1 $host) $host }} # {{ $host }} upstream {{ $upstream_name }} { {{ range $container := $containers }} {{ $addrLen := len $container.Addresses }} {{ range $knownNetwork := $CurrentContainer.Networks }} {{ range $containerNetwork := $container.Networks }} {{ if (and (ne $containerNetwork.Name "ingress") (or (eq $knownNetwork.Name $containerNetwork.Name) (eq $knownNetwork.Name "host"))) }} ## Can be connected 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 }} {{ else }} # Cannot connect to network of this container server 127.0.0.1 down; {{ 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 := trim (or (first (groupByKeys $containers "Env.VIRTUAL_PROTO")) "http") }} {{/* Get the NETWORK_ACCESS defined by containers w/ the same vhost, falling back to "external" */}} {{ $network_tag := or (first (groupByKeys $containers "Env.NETWORK_ACCESS")) "external" }} {{/* 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 SSL_POLICY defined by containers w/ the same vhost, falling back to "Mozilla-Intermediate" */}} {{ $ssl_policy := or (first (groupByKeys $containers "Env.SSL_POLICY")) "Mozilla-Intermediate" }} {{/* Get the HSTS defined by containers w/ the same vhost, falling back to "max-age=31536000" */}} {{ $hsts := or (first (groupByKeys $containers "Env.HSTS")) "max-age=31536000" }} {{/* Get the VIRTUAL_ROOT By containers w/ use fastcgi root */}} {{ $vhost_root := or (first (groupByKeys $containers "Env.VIRTUAL_ROOT")) "/var/www/public" }} {{/* 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 $https_method "nohttps") (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 }}; {{ if $enable_ipv6 }} listen [::]:80 {{ $default_server }}; {{ end }} access_log /var/log/nginx/access.log vhost; return 301 https://$host$request_uri; } {{ end }} server { server_name {{ $host }}; listen 443 ssl http2 {{ $default_server }}; {{ if $enable_ipv6 }} listen [::]:443 ssl http2 {{ $default_server }}; {{ end }} access_log /var/log/nginx/access.log vhost; {{ if eq $network_tag "internal" }} # Only allow traffic from internal clients include /etc/nginx/network_internal.conf; {{ end }} {{ if eq $ssl_policy "Mozilla-Modern" }} ssl_protocols TLSv1.2 TLSv1.3; ssl_ciphers 'ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256'; {{ else if eq $ssl_policy "Mozilla-Intermediate" }} ssl_protocols TLSv1 TLSv1.1 TLSv1.2 TLSv1.3; 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:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:!DSS'; {{ else if eq $ssl_policy "Mozilla-Old" }} ssl_protocols SSLv3 TLSv1 TLSv1.1 TLSv1.2 TLSv1.3; ssl_ciphers 'ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305: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:ECDHE-RSA-DES-CBC3-SHA:ECDHE-ECDSA-DES-CBC3-SHA:EDH-RSA-DES-CBC3-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:AES:DES-CBC3-SHA:HIGH:SEED:!aNULL:!eNULL:!EXPORT:!DES:!RC4:!MD5:!PSK:!RSAPSK:!aDH:!aECDH:!EDH-DSS-DES-CBC3-SHA:!KRB5-DES-CBC3-SHA:!SRP'; {{ else if eq $ssl_policy "AWS-TLS-1-2-2017-01" }} ssl_protocols TLSv1.2 TLSv1.3; ssl_ciphers 'ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:AES128-GCM-SHA256:AES128-SHA256:AES256-GCM-SHA384:AES256-SHA256'; {{ else if eq $ssl_policy "AWS-TLS-1-1-2017-01" }} ssl_protocols TLSv1.1 TLSv1.2 TLSv1.3; ssl_ciphers 'ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:AES128-GCM-SHA256:AES128-SHA256:AES128-SHA:AES256-GCM-SHA384:AES256-SHA256:AES256-SHA'; {{ else if eq $ssl_policy "AWS-2016-08" }} ssl_protocols TLSv1 TLSv1.1 TLSv1.2 TLSv1.3; ssl_ciphers 'ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:AES128-GCM-SHA256:AES128-SHA256:AES128-SHA:AES256-GCM-SHA384:AES256-SHA256:AES256-SHA'; {{ else if eq $ssl_policy "AWS-2015-05" }} ssl_protocols TLSv1 TLSv1.1 TLSv1.2 TLSv1.3; ssl_ciphers 'ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:AES128-GCM-SHA256:AES128-SHA256:AES128-SHA:AES256-GCM-SHA384:AES256-SHA256:AES256-SHA:DES-CBC3-SHA'; {{ else if eq $ssl_policy "AWS-2015-03" }} ssl_protocols TLSv1 TLSv1.1 TLSv1.2 TLSv1.3; ssl_ciphers 'ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES128-SHA:DHE-RSA-AES128-SHA:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:AES128-GCM-SHA256:AES128-SHA256:AES128-SHA:AES256-GCM-SHA384:AES256-SHA256:AES256-SHA:DHE-DSS-AES128-SHA:DES-CBC3-SHA'; {{ else if eq $ssl_policy "AWS-2015-02" }} ssl_protocols TLSv1 TLSv1.1 TLSv1.2 TLSv1.3; ssl_ciphers 'ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES128-SHA:DHE-RSA-AES128-SHA:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:AES128-GCM-SHA256:AES128-SHA256:AES128-SHA:AES256-GCM-SHA384:AES256-SHA256:AES256-SHA:DHE-DSS-AES128-SHA'; {{ end }} 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 (exists (printf "/etc/nginx/certs/%s.chain.pem" $cert)) }} ssl_stapling on; ssl_stapling_verify on; ssl_trusted_certificate {{ printf "/etc/nginx/certs/%s.chain.pem" $cert }}; {{ end }} {{ if (not (or (eq $https_method "noredirect") (eq $hsts "off"))) }} add_header Strict-Transport-Security "{{ trim $hsts }}" always; {{ 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 $upstream_name }}; {{ else if eq $proto "fastcgi" }} root {{ trim $vhost_root }}; include fastcgi.conf; fastcgi_pass {{ trim $upstream_name }}; {{ else }} proxy_pass {{ trim $proto }}://{{ trim $upstream_name }}; {{ 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 { server_name {{ $host }}; listen 80 {{ $default_server }}; {{ if $enable_ipv6 }} listen [::]:80 {{ $default_server }}; {{ end }} access_log /var/log/nginx/access.log vhost; {{ if eq $network_tag "internal" }} # Only allow traffic from internal clients include /etc/nginx/network_internal.conf; {{ 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 $upstream_name }}; {{ else if eq $proto "fastcgi" }} root {{ trim $vhost_root }}; include fastcgi.conf; fastcgi_pass {{ trim $upstream_name }}; {{ else }} proxy_pass {{ trim $proto }}://{{ trim $upstream_name }}; {{ 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 }}; {{ if $enable_ipv6 }} listen [::]:443 ssl http2 {{ $default_server }}; {{ end }} 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 }}

    Once these have been created in that folder, you can then start the containers:

    docker-compose up -d --build

    This will start up nginx on the server.

  • Configure your apps

  • Now that we have nginx-proxy running, we can set up any app and just point it to the nginx-proxy network along with the virtual host info.

    Setting these env variables:

    VIRTUAL_HOST: www.domain.com LETSENCRYPT_HOST: www.domain.com LETSENCRYPT_EMAIL: youremail@yourmail.com

    will configure the virtual host and lets encrypt to point to the site in question.

    I'll demonstrate with wordpress:

    Let's make a folder in your sites folder called wp.

    First, create .dockerignore:

    .dockerignore
    # comment */temp* */*/temp* temp? volumes/wordpress/*

    Now, let's make our docker-compose.yaml file:

    docker-compose.yaml
    version: '3' services: mysql: image: mariadb expose: - 3306 volumes: - ./volumes/db-data:/var/lib/mysql environment: - MYSQL_ROOT_PASSWORD=whateverpassyouwant restart: always wordpress: image: wordpress:5.7-php7.4-apache expose: - 80 working_dir: /var/www/html volumes: - ./volumes/wordpress:/var/www/html/ environment: - WORDPRESS_DB_NAME=wpdb - WORDPRESS_TABLE_PREFIX=wp_ - WORDPRESS_DB_HOST=mysql - WORDPRESS_DB_PASSWORD=whateverpassyouwant - VIRTUAL_HOST=wp.yourdomain.com - LETSENCRYPT_HOST=SAME_AS_VIRTUAL_HOST - LETSENCRYPT_EMAIL=your@email.com links: - mysql restart: always networks: default: external: name: nginx-proxy

    Ok, hit save, and run:

    docker-compose up -d --build

    Once it finishes, you'll have wordpress running on the domain you specified in your VIRTUAL_HOST.

    One final piece, if the container you want set up doesn’t use PORT 80, you can also set nginx to proxy to the port the container does use:

    version: '3' services: whoami: image: jwilder/whoami expose: - "8000" environment: - VIRTUAL_HOST=whoami.yourdomain.com - LETSENCRYPT_HOST=SAME_AS_VIRTUAL_HOST - LETSENCRYPT_EMAIL=your@email.com - VIRTUAL_PORT=8000 networks: default: external: name: nginx-proxy

    Setting VIRTUAL_PORT will tell nginx what port to proxy the domain to.

    We'll expand on this more in future posts, but this is a start.

    Tagged In:#code#docker

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