3 navsection: installguide
4 title: Install the API server
7 Copyright (C) The Arvados Authors. All rights reserved.
9 SPDX-License-Identifier: CC-BY-SA-3.0
12 h2. Install prerequisites
14 The Arvados package repository includes an API server package that can help automate much of the deployment.
16 h3(#install_ruby_and_bundler). Install Ruby and Bundler
18 {% include 'install_ruby_and_bundler' %}
20 h2(#install_apiserver). Install API server and dependencies
22 On a Debian-based system, install the following packages:
25 <pre><code>~$ <span class="userinput">sudo apt-get install bison build-essential libcurl4-openssl-dev git arvados-api-server</span>
29 On a Red Hat-based system, install the following packages:
32 <pre><code>~$ <span class="userinput">sudo yum install bison make automake gcc gcc-c++ libcurl-devel git arvados-api-server</span>
36 {% include 'install_git' %}
38 h2(#configure_application). Configure the API server
40 Edit @/etc/arvados/config.yml@ to set the keys below. Only the most important configuration options are listed here. The example configuration fragments given below should be merged into a single configuration structure. Correct indentation is important. The full set of configuration options are listed in "config.yml":{{site.baseurl}}/admin/config.html
42 h3(#uuid_prefix). ClusterID
44 The @ClusterID@ is used for all database identifiers to identify the record as originating from this site. It is the first key under @Clusters@ in @config.yml@. It must be exactly 5 lowercase ASCII letters and digits. All configuration items go under the cluster id key (replace @zzzzz@ with your cluster id in the examples below).
48 <span class="userinput">zzzzz</span>:
52 h3(#configure). PostgreSQL.Connection
54 Replace the @xxxxxxxx@ database password placeholder with the "password you generated during database setup":install-postgresql.html#api.
61 host: <span class="userinput">localhost</span>
62 user: <span class="userinput">arvados</span>
63 password: <span class="userinput">xxxxxxxx</span>
64 dbname: <span class="userinput">arvados_production</span>
68 h3. API.RailsSessionSecretToken
70 The @API.RailsSessionSecretToken@ 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 @config.yml@:
73 <pre><code>~$ <span class="userinput">ruby -e 'puts rand(2**400).to_s(36)'</span>
74 yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy
75 </code></pre></notextile>
83 RailsSessionSecretToken: <span class="userinput">yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy</span></code></pre>
86 h3(#blob_signing_key). Collections.BlobSigningKey
88 The @Collections.BlobSigningKey@ 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 @config.yml@:
91 <pre><code>~$ <span class="userinput">ruby -e 'puts rand(2**400).to_s(36)'</span>
92 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
93 </code></pre></notextile>
101 BlobSigningKey: <span class="userinput">xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx</span></code></pre>
104 h3(#omniauth). Login.ProviderAppID, Login.ProviderAppSecret, Services.SSO.ExternalURL
106 The following settings enable the API server to communicate with the "Single Sign On (SSO) server":install-sso.html to authenticate user log in.
108 Set @Services.SSO.ExternalURL@ 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.
110 Set @Login.ProviderAppID@ and @Login.ProviderAppSecret@ to the corresponding values for @app_id@ and @app_secret@ used in the "Create arvados-server client for Single Sign On (SSO)":install-sso.html#client step.
112 Example @config.yml@:
119 ExternalURL: <span class="userinput">https://sso.example.com</span>
121 ProviderAppID: <span class="userinput">arvados-server</span>
122 ProviderAppSecret: <span class="userinput">wwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwwww</span></code></pre>
125 h3. Services.Workbench1.ExternalURL
127 Set @Services.Workbench1.ExternalURL@ to the URL of your workbench application after following "Install Workbench.":install-workbench-app.html
129 Example @config.yml@:
136 ExternalURL: <span class="userinput">https://workbench.zzzzz.example.com</span></code></pre>
139 h3. Services.Websocket.ExternalURL
141 Set @Services.Websocket.ExternalURL@ to the @wss://@ URL of the API server websocket endpoint after following "Install the websocket server":install-ws.html .
143 Example @config.yml@:
150 ExternalURL: <span class="userinput">wss://ws.zzzzz.example.com</span></code></pre>
153 h3(#git_repositories_dir). Git.Repositories
155 The @Git.Repositories@ setting specifies the directory where user git repositories will be stored.
157 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:
160 <pre><code>~$ <span class="userinput">sudo mkdir -p /var/lib/arvados/git/repositories</span>
161 </code></pre></notextile>
163 If you intend to store your git repositories in a different location, specify that location in @config.yml@. Example:
169 Repositories: <span class="userinput">/var/lib/arvados/git/repositories</span></code></pre>
172 h3(#enable_legacy_jobs_api). Containers.JobsAPI.Enable
174 Enable the legacy "Jobs API":install-crunch-dispatch.html . Note: new installations should use the "Containers API":crunch2-slurm/install-prerequisites.html
176 Disabling the jobs API means methods involving @jobs@, @job_tasks@, @pipeline_templates@ and @pipeline_instances@ are disabled. This functionality is superceded by the containers API which consists of @container_requests@, @containers@ and @workflows@. Arvados clients (such as @arvados-cwl-runner@) detect which APIs are available and adjust behavior accordingly. Note the configuration value must be a quoted string.
178 * 'auto' -- (default) enable the Jobs API only if it has been used before (i.e., there are job records in the database), otherwise disable jobs API .
179 * 'true' -- enable the Jobs API even if there are no existing job records.
180 * 'false' -- disable the Jobs API even in the presence of existing job records.
187 Enable: <span class="userinput">'auto'</span></code></pre>
190 h4(#git_internal_dir). Containers.JobsAPI.GitInternalDir
192 Only required if the legacy "Jobs API" is enabled, otherwise you should skip this.
194 The @Containers.JobsAPI.GitInternalDir@ 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 the directory in @Git.Repositories@.
196 Example @config.yml@:
203 GitInternalDir: <span class="userinput">/var/lib/arvados/internal.git</span></code></pre>
206 h2(#set_up). Set up Nginx and Passenger
208 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.
210 First, "Install Nginx and Phusion Passenger":https://www.phusionpassenger.com/library/walkthroughs/deploy/ruby/ownserver/nginx/oss/install_passenger_main.html.
212 Edit the http section of your Nginx configuration to run the Passenger server. Add a block like the following, adding SSL and logging parameters to taste:
217 listen 127.0.0.1:8000;
218 server_name localhost-api;
220 root /var/www/arvados-api/current/public;
221 index index.html index.htm index.php;
223 passenger_enabled on;
224 # If you're using RVM, uncomment the line below.
225 #passenger_ruby /usr/local/rvm/wrappers/default/ruby;
227 # This value effectively limits the size of API objects users can
228 # create, especially collections. If you change this, you should
229 # also ensure the following settings match it:
230 # * `client_max_body_size` in the server section below
231 # * `client_max_body_size` in the Workbench Nginx configuration (twice)
232 # * `API.MaxRequestSize` in config.yml
233 client_max_body_size 128m;
237 server 127.0.0.1:8000 fail_timeout=10s;
240 proxy_http_version 1.1;
242 # When Keep clients request a list of Keep services from the API server, the
243 # server will automatically return the list of available proxies if
244 # the request headers include X-External-Client: 1. Following the example
245 # here, at the end of this section, add a line for each netmask that has
246 # direct access to Keep storage daemons to set this header value to 0.
247 geo $external_client {
249 <span class="userinput">10.20.30.0/24</span> 0;
254 Restart Nginx to apply the new configuration.
257 <pre><code>~$ <span class="userinput">sudo nginx -s reload</span>
261 h2. Prepare the API server deployment
263 {% assign railspkg = "arvados-api-server" %}
264 {% include 'install_rails_reconfigure' %}
266 {% include 'notebox_begin' %}
267 You can safely ignore the following messages if they appear while this command runs:
269 <notextile><pre>Don't run Bundler as root. Bundler can ask for sudo if it is needed, and installing your bundle as root will
270 break this application for all non-root users on this machine.</pre></notextile>
272 <notextile><pre>fatal: Not a git repository (or any of the parent directories): .git</pre></notextile>
273 {% include 'notebox_end' %}
277 Once you have the API Server up and running you may need to check it back if dealing with client related issues. Please read our "admin troubleshooting notes":{{site.baseurl}}/admin/troubleshooting.html on how requests can be tracked down between services.