---
layout: default
navsection: installguide
-title: Install the API server
+title: Install API server and Controller
...
{% comment %}
Copyright (C) The Arvados Authors. All rights reserved.
SPDX-License-Identifier: CC-BY-SA-3.0
{% endcomment %}
-h2. Install prerequisites
+# "Introduction":#introduction
+# "Install dependencies":#dependencies
+# "Set up database":#database-setup
+# "Update config.yml":#update-config
+# "Update nginx configuration":#update-nginx
+# "Install arvados-api-server and arvados-controller":#install-packages
+# "Confirm working installation":#confirm-working
-The Arvados package repository includes an API server package that can help automate much of the deployment.
+h2(#introduction). Introduction
-h3(#install_ruby_and_bundler). Install Ruby and Bundler
+The Arvados core API server consists of four services: PostgreSQL, Arvados Rails API, Arvados Controller, and Nginx.
-{% include 'install_ruby_and_bundler' %}
+Here is a simplified diagram showing the relationship between the core services. Client requests arrive at the public-facing Nginx reverse proxy. The request is forwarded to Arvados controller. The controller is able handle some requests itself, the rest are forwarded to the Arvados Rails API. The Rails API server implements the majority of business logic, communicating with the PostgreSQL database to fetch data and make transactional updates. All services are stateless, except the PostgreSQL database. This guide assumes all of these services will be installed on the same node, but it is possible to install these services across multiple nodes.
-h2(#install_apiserver). Install API server and dependencies
+!(full-width){{site.baseurl}}/images/proxy-chain.svg!
-On a Debian-based system, install the following packages:
+h2(#dependencies). Install dependencies
-<notextile>
-<pre><code>~$ <span class="userinput">sudo apt-get install bison build-essential libcurl4-openssl-dev git arvados-api-server</span>
-</code></pre>
-</notextile>
-
-On a Red Hat-based system, install the following packages:
-
-<notextile>
-<pre><code>~$ <span class="userinput">sudo yum install bison make automake gcc gcc-c++ libcurl-devel git arvados-api-server</span>
-</code></pre>
-</notextile>
-
-{% include 'install_git' %}
-
-h2(#configure). Set up the database
-
-Configure the API server to connect to your database by updating @/etc/arvados/api/database.yml@. Replace the @xxxxxxxx@ database password placeholder with the "password you generated during database setup":install-postgresql.html#api. Be sure to update the @production@ section.
-
-<notextile>
-<pre><code>~$ <span class="userinput">editor /etc/arvados/api/database.yml</span>
-</code></pre></notextile>
+# "Install PostgreSQL":install-postgresql.html
+# "Install Ruby and Bundler":ruby.html
+# "Install nginx":nginx.html
+# "Install Phusion Passenger":https://www.phusionpassenger.com/library/walkthroughs/deploy/ruby/ownserver/nginx/oss/install_passenger_main.html
-h2(#configure_application). Configure the API server
+h2(#database-setup). Set up database
-Edit @/etc/arvados/api/application.yml@ to configure the settings described in the following sections. The API server reads both @application.yml@ and its own @config/application.default.yml@ file. The settings in @application.yml@ take precedence over the defaults that are defined in @config/application.default.yml@. The @config/application.yml.example@ file is not read by the API server and is provided as a starting template only.
+{% assign service_role = "arvados" %}
+{% assign service_database = "arvados_production" %}
+{% assign use_contrib = true %}
+{% include 'install_postgres_database' %}
-@config/application.default.yml@ documents additional configuration settings not listed here. You can "view the current source version":https://dev.arvados.org/projects/arvados/repository/revisions/master/entry/services/api/config/application.default.yml for reference.
+h2(#update-config). Update config.yml
-Only put local configuration in @application.yml@. Do not edit @application.default.yml@.
+Starting from an "empty config.yml file,":config.html#empty add the following configuration keys.
-h3(#uuid_prefix). uuid_prefix
-
-Define your @uuid_prefix@ in @application.yml@ by setting the @uuid_prefix@ field in the section for your environment. This prefix is used for all database identifiers to identify the record as originating from this site. It must be exactly 5 lowercase ASCII letters and digits.
-
-Example @application.yml@:
-
-<notextile>
-<pre><code> uuid_prefix: <span class="userinput">zzzzz</span></code></pre>
-</notextile>
-
-h3. secret_token
-
-The @secret_token@ is used for for signing cookies. IMPORTANT: This is a site secret. It should be at least 50 characters. Generate a random value and set it in @application.yml@:
+h3. Tokens
<notextile>
-<pre><code>~$ <span class="userinput">ruby -e 'puts rand(2**400).to_s(36)'</span>
-yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy
-</code></pre></notextile>
-
-Example @application.yml@:
-
-<notextile>
-<pre><code> secret_token: <span class="userinput">yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy</span></code></pre>
-</notextile>
-
-h3(#blob_signing_key). blob_signing_key
-
-The @blob_signing_key@ is used to enforce access control to Keep blocks. This same key must be provided to the Keepstore daemons when "installing Keepstore servers.":install-keepstore.html IMPORTANT: This is a site secret. It should be at least 50 characters. Generate a random value and set it in @application.yml@:
-
-<notextile>
-<pre><code>~$ <span class="userinput">ruby -e 'puts rand(2**400).to_s(36)'</span>
-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
-</code></pre></notextile>
-
-Example @application.yml@:
-
-<notextile>
-<pre><code> blob_signing_key: <span class="userinput">xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx</span></code></pre>
-</notextile>
-
-h3(#omniauth). sso_app_secret, sso_app_id, sso_provider_url
-
-The following settings enable the API server to communicate with the "Single Sign On (SSO) server":install-sso.html to authenticate user log in.
-
-Set @sso_provider_url@ to the base URL where your SSO server is installed. This should be a URL consisting of the scheme and host (and optionally, port), without a trailing slash.
-
-Set @sso_app_secret@ and @sso_app_id@ to the corresponding values for @app_secret@ and @app_id@ used in the "Create arvados-server client for Single Sign On (SSO)":install-sso.html#client step.
-
-Example @application.yml@:
-
-<notextile>
-<pre><code> sso_app_id: <span class="userinput">arvados-server</span>
- sso_app_secret: <span class="userinput">wwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwww</span>
- sso_provider_url: <span class="userinput">https://sso.example.com</span>
+<pre><code> SystemRootToken: <span class="userinput">"$system_root_token"</span>
+ ManagementToken: <span class="userinput">"$management_token"</span>
+ API:
+ RailsSessionSecretToken: <span class="userinput">"$rails_secret_token"</span>
+ Collections:
+ BlobSigningKey: <span class="userinput">"blob_signing_key"</span>
</code></pre>
</notextile>
-h3. workbench_address
-
-Set @workbench_address@ to the URL of your workbench application after following "Install Workbench.":install-workbench-app.html
-
-Example @application.yml@:
-
-<notextile>
-<pre><code> workbench_address: <span class="userinput">https://workbench.zzzzz.example.com</span></code></pre>
-</notextile>
-
-h3. websocket_address
-
-Set @websocket_address@ to the @wss://@ URL of the API server websocket endpoint after following "Set up Web servers":#set_up. The path of the default endpoint is @/websocket@.
-
-Example @application.yml@:
-
-<notextile>
-<pre><code> websocket_address: <span class="userinput">wss://ws.zzzzz.example.com</span>/websocket</code></pre>
-</notextile>
-
-h3(#git_repositories_dir). git_repositories_dir
-
-The @git_repositories_dir@ setting specifies the directory where user git repositories will be stored.
+@SystemRootToken@ is used by Arvados system services to authenticate as the system (root) user when communicating with the API server.
-The git server setup process is covered on "its own page":install-arv-git-httpd.html. For now, create an empty directory in the default location:
+@ManagementToken@ is used to authenticate access to system metrics.
-<notextile>
-<pre><code>~$ <span class="userinput">sudo mkdir -p /var/lib/arvados/git/repositories</span>
-</code></pre></notextile>
+@API.RailsSessionSecretToken@ is required by the API server.
-If you intend to store your git repositories in a different location, specify that location in @application.yml@.
+@Collections.BlobSigningKey@ is used to control access to Keep blocks.
-Default setting in @application.default.yml@:
+You can generate a random token for each of these items at the command line like this:
<notextile>
-<pre><code> git_repositories_dir: <span class="userinput">/var/lib/arvados/git/repositories</span>
+<pre><code>~$ <span class="userinput">tr -dc 0-9a-zA-Z </dev/urandom | head -c50; echo</span>
</code></pre>
</notextile>
-h3(#git_internal_dir). git_internal_dir
-
-The @git_internal_dir@ setting specifies the location of Arvados' internal git repository. By default this is @/var/lib/arvados/internal.git@. This repository stores git commits that have been used to run Crunch jobs. It should _not_ be a subdirectory of @git_repositories_dir@.
-
-Example @application.yml@:
+h3. PostgreSQL.Connection
<notextile>
-<pre><code> git_internal_dir: <span class="userinput">/var/lib/arvados/internal.git</span>
+<pre><code> PostgreSQL:
+ Connection:
+ host: <span class="userinput">localhost</span>
+ user: <span class="userinput">arvados</span>
+ password: <span class="userinput">$postgres_password</span>
+ dbname: <span class="userinput">arvados_production</span>
</code></pre>
</notextile>
-h3(#disable_api_methods). disable_api_methods
+Replace the @$postgres_password@ placeholder with the password you generated during "database setup":#database-setup .
-Set the @disable_api_methods@ configuration option to disable the deprecated @jobs@ API. This will prevent users from accidentally submitting jobs that won't run. "All new installations should use the containers API.":crunch2-slurm/install-prerequisites.html
+h3. Services
<notextile>
-<pre><code>
- disable_api_methods:
- - jobs.create
- - pipeline_instances.create
- - pipeline_templates.create
- - jobs.get
- - pipeline_instances.get
- - pipeline_templates.get
- - jobs.list
- - pipeline_instances.list
- - pipeline_templates.list
- - jobs.index
- - pipeline_instances.index
- - pipeline_templates.index
- - jobs.update
- - pipeline_instances.update
- - pipeline_templates.update
- - jobs.queue
- - jobs.queue_size
- - job_tasks.create
- - job_tasks.get
- - job_tasks.list
- - job_tasks.index
- - job_tasks.update
- - jobs.show
- - pipeline_instances.show
- - pipeline_templates.show
- - job_tasks.show
+<pre><code> Services:
+ Controller:
+ ExternalURL: <span class="userinput">"https://ClusterID.example.com"</span>
+ InternalURLs:
+ <span class="userinput">"http://localhost:8003": {}</span>
+ RailsAPI:
+ # Does not have an ExternalURL
+ InternalURLs:
+ <span class="userinput">"http://localhost:8004": {}</span>
</code></pre>
</notextile>
-h2(#set_up). Set up Nginx and Passenger
+Replace @ClusterID.example.com@ with the hostname that you previously selected for the API server.
-The Nginx server will serve API requests using Passenger. It will also be used to proxy SSL requests to other services which are covered later in this guide.
+The @Services@ section of the configuration helps Arvados components contact one another (service discovery). Each service has one or more @InternalURLs@ and an @ExternalURL@. The @InternalURLs@ describe where the service runs, and how the Nginx reverse proxy will connect to it. The @ExternalURL@ is how external clients contact the service.
-First, "Install Nginx and Phusion Passenger":https://www.phusionpassenger.com/library/walkthroughs/deploy/ruby/ownserver/nginx/oss/install_passenger_main.html.
+h2(#update-nginx). Update nginx configuration
-Edit the http section of your Nginx configuration to run the Passenger server, and serve SSL requests. Add a block like the following, adding SSL and logging parameters to taste:
+Use a text editor to create a new file @/etc/nginx/conf.d/arvados-api-and-controller.conf@ with the following configuration. Options that need attention are marked in <span class="userinput">red</span>.
<notextile>
-<pre><code>server {
- listen 127.0.0.1:8000;
- server_name localhost-api;
-
- root /var/www/arvados-api/current/public;
- index index.html index.htm index.php;
-
- passenger_enabled on;
- # If you're using RVM, uncomment the line below.
- #passenger_ruby /usr/local/rvm/wrappers/default/ruby;
-
- # This value effectively limits the size of API objects users can
- # create, especially collections. If you change this, you should
- # also ensure the following settings match it:
- # * `client_max_body_size` in the server section below
- # * `client_max_body_size` in the Workbench Nginx configuration (twice)
- # * `max_request_size` in the API server's application.yml file
- client_max_body_size 128m;
-}
+<pre><code>proxy_http_version 1.1;
-upstream api {
- server 127.0.0.1:8000 fail_timeout=10s;
-}
+# When Keep clients request a list of Keep services from the API
+# server, use the origin IP address to determine if the request came
+# from the internal subnet or it is an external client. This sets the
+# $external_client variable which in turn is used to set the
+# X-External-Client header.
+#
+# The API server uses this header to choose whether to respond to a
+# "available keep services" request with either a list of internal keep
+# servers (0) or with the keepproxy (1).
+#
+# <span class="userinput">Following the example here, update the 10.20.30.0/24 netmask</span>
+# <span class="userinput">to match your private subnet.</span>
+# <span class="userinput">Update 1.2.3.4 and add lines as necessary with the public IP</span>
+# <span class="userinput">address of all servers that can also access the private network to</span>
+# <span class="userinput">ensure they are not considered 'external'.</span>
-proxy_http_version 1.1;
-
-# When Keep clients request a list of Keep services from the API server, the
-# server will automatically return the list of available proxies if
-# the request headers include X-External-Client: 1. Following the example
-# here, at the end of this section, add a line for each netmask that has
-# direct access to Keep storage daemons to set this header value to 0.
geo $external_client {
default 1;
+ 127.0.0.0/24 0;
<span class="userinput">10.20.30.0/24</span> 0;
+ <span class="userinput">1.2.3.4/32</span> 0;
+}
+
+# This is the port where nginx expects to contact arvados-controller.
+upstream controller {
+ server localhost:8003 fail_timeout=10s;
}
server {
- listen <span class="userinput">[your public IP address]</span>:443 ssl;
- server_name <span class="userinput">uuid_prefix.your.domain</span>;
+ # This configures the public https port that clients will actually connect to,
+ # the request is reverse proxied to the upstream 'controller'
+
+ listen *:443 ssl;
+ server_name <span class="userinput">xxxxx.example.com</span>;
ssl on;
ssl_certificate <span class="userinput">/YOUR/PATH/TO/cert.pem</span>;
ssl_certificate_key <span class="userinput">/YOUR/PATH/TO/cert.key</span>;
- index index.html index.htm index.php;
-
- # Refer to the comment about this setting in the server section above.
+ # Refer to the comment about this setting in the passenger (arvados
+ # api server) section of your Nginx configuration.
client_max_body_size 128m;
location / {
- proxy_pass http://api;
+ proxy_pass http://controller;
proxy_redirect off;
proxy_connect_timeout 90s;
proxy_read_timeout 300s;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
}
}
-</code></pre>
-</notextile>
-Restart Nginx to apply the new configuration.
+server {
+ # This configures the Arvados API server. It is written using Ruby
+ # on Rails and uses the Passenger application server.
-<notextile>
-<pre><code>~$ <span class="userinput">sudo nginx -s reload</span>
+ listen <span class="userinput">localhost:8004</span>;
+ server_name localhost-api;
+
+ root /var/www/arvados-api/current/public;
+ index index.html index.htm index.php;
+
+ passenger_enabled on;
+
+ # <span class="userinput">If you are using RVM, uncomment the line below.</span>
+ # <span class="userinput">If you're using system ruby, leave it commented out.</span>
+ #passenger_ruby /usr/local/rvm/wrappers/default/ruby;
+
+ # This value effectively limits the size of API objects users can
+ # create, especially collections. If you change this, you should
+ # also ensure the following settings match it:
+ # * `client_max_body_size` in the previous server section
+ # * `API.MaxRequestSize` in config.yml
+ client_max_body_size 128m;
+}
</code></pre>
</notextile>
-h2. Prepare the API server deployment
+{% assign arvados_component = 'arvados-api-server arvados-controller' %}
+
+{% include 'install_packages' %}
+
+{% assign arvados_component = 'arvados-controller' %}
+
+{% include 'start_service' %}
+
+h2(#confirm-working). Confirm working installation
+
+Confirm working controller:
+
+<notextile><pre><code>$ curl https://<span class="userinput">ClusterID.example.com</span>/arvados/v1/config
+</code></pre></notextile>
+
+Confirm working Rails API server:
+
+<notextile><pre><code>$ curl https://<span class="userinput">ClusterID.example.com</span>/discovery/v1/apis/arvados/v1/rest
+</code></pre></notextile>
+
+Confirm that you can use the system root token to act as the system root user:
+
+<notextile><pre><code>
+$ curl -H "Authorization: Bearer $system_root_token" https://<span class="userinput">ClusterID.example.com</span>/arvados/v1/users/current
+</code></pre></notextile>
-{% assign railspkg = "arvados-api-server" %}
-{% include 'install_rails_reconfigure' %}
+h3. Troubleshooting
-{% include 'notebox_begin' %}
-You can safely ignore the following messages if they appear while this command runs:
+If you are getting TLS errors, make sure the @ssl_certificate@ directive in your nginx configuration has the "full certificate chain":http://nginx.org/en/docs/http/configuring_https_servers.html#chains
-<notextile><pre>Don't run Bundler as root. Bundler can ask for sudo if it is needed, and installing your bundle as root will
-break this application for all non-root users on this machine.</pre></notextile>
+Logs can be found in @/var/www/arvados-api/current/log/production.log@ and using @journalctl -u arvados-controller@.
-<notextile><pre>fatal: Not a git repository (or any of the parent directories): .git</pre></notextile>
-{% include 'notebox_end' %}
+See also the admin page on "Logging":{{site.baseurl}}/admin/logging.html .
projects / arvados.git / blobdiff