---
layout: default
navsection: installguide
-title: Install download server
+title: Install the keep-web server
...
-This installation guide assumes you are on a 64 bit Debian or Ubuntu system.
+The keep-web server provides read-only HTTP access to files stored in Keep. It serves public data to unauthenticated clients, and serves private data to clients that supply Arvados API tokens. It can be installed anywhere with access to Keep services, typically behind a web proxy that provides SSL support. See the "godoc page":http://godoc.org/github.com/curoverse/arvados/services/keep-web for more detail.
-The keep-web server provides read-only HTTP access to files stored in Keep. It serves public data to anonymous and unauthenticated clients, and accepts authentication via Arvados tokens. It can be installed anywhere with access to Keep services, typically behind a web proxy that provides SSL support.
+By convention, we use the following hostnames for the keep-web service:
-By convention, we use the following hostname for the download service:
-
-<div class="offset1">
-table(table table-bordered table-condensed).
-|dl.@uuid_prefix@.your.domain|
-</div>
+<notextile>
+<pre><code>download.<span class="userinput">uuid_prefix</span>.your.domain
+collections.<span class="userinput">uuid_prefix</span>.your.domain
+</code></pre>
+</notextile>
-This hostname should resolve from anywhere on the internet.
+The above hostnames should resolve from anywhere on the internet.
h2. Install keep-web
-First add the Arvados apt repository, and then install the keep-web package.
+On Debian-based systems:
+
+<notextile>
+<pre><code>~$ <span class="userinput">sudo apt-get install keep-web</span>
+</code></pre>
+</notextile>
+
+On Red Hat-based systems:
<notextile>
-<pre><code>~$ <span class="userinput">echo "deb http://apt.arvados.org/ wheezy main" | sudo tee /etc/apt/sources.list.d/apt.arvados.org.list</span>
-~$ <span class="userinput">sudo /usr/bin/apt-key adv --keyserver pool.sks-keyservers.net --recv 1078ECD7</span>
-~$ <span class="userinput">sudo /usr/bin/apt-get update</span>
-~$ <span class="userinput">sudo /usr/bin/apt-get install keep-web</span>
+<pre><code>~$ <span class="userinput">sudo yum install keep-web</span>
</code></pre>
</notextile>
<notextile>
<pre><code>~$ <span class="userinput">keep-web -h</span>
Usage of keep-web:
- -address="0.0.0.0:80": Address to listen on, "host:port".
+ -allow-anonymous
+ Serve public data to anonymous clients. Try the token supplied in the ARVADOS_API_TOKEN environment variable when none of the tokens provided in an HTTP request succeed in reading the desired collection. (default false)
+ -attachment-only-host string
+ Accept credentials, and add "Content-Disposition: attachment" response headers, for requests at this hostname:port. Prohibiting inline display makes it possible to serve untrusted and non-public content from a single origin, i.e., without wildcard DNS or SSL.
+ -listen string
+ Address to listen on: "host:port", or ":port" to listen on all interfaces. (default ":80")
+ -trust-all-content
+ Serve non-public content from a single origin. Dangerous: read docs before using!
</code></pre>
</notextile>
-We recommend running @arv-git-httpd@ under "runit":https://packages.debian.org/search?keywords=runit or something similar.
+{% assign railscmd = "bundle exec ./script/get_anonymous_user_token.rb" %}
+{% assign railsout = "zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz" %}
+If you intend to use Keep-web to serve public data to anonymous clients, configure it with an anonymous token. You can use the same one you used when you set up your Keepproxy server, or use the following command on the <strong>API server</strong> to create another. {% include 'install_rails_command' %}
-Your @run@ script should look something like this:
+We recommend running @keep-web@ under "runit":https://packages.debian.org/search?keywords=runit or a similar supervisor. The basic command to start @keep-web@ is:
<notextile>
<pre><code>export ARVADOS_API_HOST=<span class="userinput">uuid_prefix</span>.your.domain
-exec sudo -u nobody keep-web -address=:9002 2>&1
+export ARVADOS_API_TOKEN="<span class="userinput">{{railsout}}</span>"
+exec sudo -u nobody keep-web \
+ -listen=<span class="userinput">:9002</span> \
+ -attachment-only-host=<span class="userinput">download.uuid_prefix.your.domain</span> \
+ -allow-anonymous \
+ 2>&1
</code></pre>
</notextile>
+Omit the @-allow-anonymous@ argument if you do not want to serve public data.
+
+Set @ARVADOS_API_HOST_INSECURE=1@ if your API server's SSL certificate is not signed by a recognized CA.
+
h3. Set up a reverse proxy with SSL support
The keep-web service will be accessible from anywhere on the internet, so we recommend using SSL for transport encryption.
This is best achieved by putting a reverse proxy with SSL support in front of keep-web, running on port 443 and passing requests to keep-web on port 9002 (or whatever port you chose in your run script).
-h3. Tell the API server about the keep-web service
+Note: A wildcard SSL certificate is required in order to support a full-featured secure keep-web service. Without it, keep-web can offer file downloads for all Keep data; however, in order to avoid cross-site scripting vulnerabilities, keep-web refuses to serve private data as web content except when it is accessed using a "secret link" share. With a wildcard SSL certificate and DNS configured appropriately, all data can be served as web content.
+
+For example, using Nginx:
+
+<notextile><pre>
+upstream keep-web {
+ server 127.0.0.1:<span class="userinput">9002</span>;
+}
+
+server {
+ listen <span class="userinput">[your public IP address]</span>:443 ssl;
+ server_name download.<span class="userinput">uuid_prefix</span>.your.domain
+ collections.<span class="userinput">uuid_prefix</span>.your.domain
+ *.collections.<span class="userinput">uuid_prefix</span>.your.domain
+ ~.*--collections.<span class="userinput">uuid_prefix</span>.your.domain;
+
+ proxy_connect_timeout 90s;
+ proxy_read_timeout 300s;
+
+ 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>;
+
+ location / {
+ proxy_pass http://keep-web;
+ proxy_set_header Host $host;
+ proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+ }
+}
+</pre></notextile>
+
+h3. Configure DNS
+
+Configure your DNS servers so the following names resolve to your Nginx proxy's public IP address.
+* @download.uuid_prefix.your.domain@
+* @collections.uuid_prefix.your.domain@
+* @*--collections.uuid_prefix.your.domain@, if you have a wildcard SSL certificate valid for @*.uuid_prefix.your.domain@ and your DNS server allows this without interfering with other DNS names.
+* @*.collections.uuid_prefix.your.domain@, if you have a wildcard SSL certificate valid for these names.
+
+If neither of the above wildcard options is feasible, only unauthenticated requests (public data and collection sharing links) will be served as web content at @collections.uuid_prefix.your.domain@. The @download@ name will be used to serve authenticated content, but only as file downloads.
+
+h3. Tell Workbench about the keep-web service
+
+Workbench has features like "download file from collection" and "show image" which work better if the content is served by keep-web rather than Workbench itself. We recommend using the two different hostnames ("download" and "collections" above) for file downloads and inline content respectively.
+
+Add the following entry to your Workbench configuration file (@/etc/arvados/workbench/application.yml@). This URL will be used for file downloads.
+
+<notextile>
+<pre><code>keep_web_download_url: https://download.<span class="userinput">uuid_prefix</span>.your.domain/c=%{uuid_or_pdh}
+</code></pre>
+</notextile>
-In your API server's config/application.yml file, add the following entry:
+Additionally, add *one* of the following entries to your Workbench configuration file, depending on your DNS setup. This URL will be used to serve user content that can be displayed in the browser, like image previews and static HTML pages.
<notextile>
-<pre><code>keep-web: dl.<span class="userinput">uuid_prefix</span>.your.domain
+<pre><code>keep_web_url: https://%{uuid_or_pdh}--collections.<span class="userinput">uuid_prefix</span>.your.domain
+keep_web_url: https://%{uuid_or_pdh}.collections.<span class="userinput">uuid_prefix</span>.your.domain
+keep_web_url: https://collections.<span class="userinput">uuid_prefix</span>.your.domain/c=%{uuid_or_pdh}
</code></pre>
</notextile>
projects / arvados.git / blobdiff