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Diffstat (limited to 'third_party/nix/doc/manual/installation/env-variables.xml')
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diff --git a/third_party/nix/doc/manual/installation/env-variables.xml b/third_party/nix/doc/manual/installation/env-variables.xml new file mode 100644 index 0000000000..e2b8fc867c --- /dev/null +++ b/third_party/nix/doc/manual/installation/env-variables.xml @@ -0,0 +1,89 @@ +<chapter xmlns="http://docbook.org/ns/docbook" + xmlns:xlink="http://www.w3.org/1999/xlink" + xmlns:xi="http://www.w3.org/2001/XInclude" + version="5.0" + xml:id="ch-env-variables"> + +<title>Environment Variables</title> + +<para>To use Nix, some environment variables should be set. In +particular, <envar>PATH</envar> should contain the directories +<filename><replaceable>prefix</replaceable>/bin</filename> and +<filename>~/.nix-profile/bin</filename>. The first directory contains +the Nix tools themselves, while <filename>~/.nix-profile</filename> is +a symbolic link to the current <emphasis>user environment</emphasis> +(an automatically generated package consisting of symlinks to +installed packages). The simplest way to set the required environment +variables is to include the file +<filename><replaceable>prefix</replaceable>/etc/profile.d/nix.sh</filename> +in your <filename>~/.profile</filename> (or similar), like this:</para> + +<screen> +source <replaceable>prefix</replaceable>/etc/profile.d/nix.sh</screen> + +<section xml:id="sec-nix-ssl-cert-file"> + +<title><envar>NIX_SSL_CERT_FILE</envar></title> + +<para>If you need to specify a custom certificate bundle to account +for an HTTPS-intercepting man in the middle proxy, you must specify +the path to the certificate bundle in the environment variable +<envar>NIX_SSL_CERT_FILE</envar>.</para> + + +<para>If you don't specify a <envar>NIX_SSL_CERT_FILE</envar> +manually, Nix will install and use its own certificate +bundle.</para> + +<procedure> + <step><para>Set the environment variable and install Nix</para> + <screen> +$ export NIX_SSL_CERT_FILE=/etc/ssl/my-certificate-bundle.crt +$ sh <(curl https://nixos.org/nix/install) +</screen></step> + + <step><para>In the shell profile and rc files (for example, + <filename>/etc/bashrc</filename>, <filename>/etc/zshrc</filename>), + add the following line:</para> +<programlisting> +export NIX_SSL_CERT_FILE=/etc/ssl/my-certificate-bundle.crt +</programlisting> +</step> +</procedure> + +<note><para>You must not add the export and then do the install, as +the Nix installer will detect the presense of Nix configuration, and +abort.</para></note> + +<section xml:id="sec-nix-ssl-cert-file-with-nix-daemon-and-macos"> +<title><envar>NIX_SSL_CERT_FILE</envar> with macOS and the Nix daemon</title> + +<para>On macOS you must specify the environment variable for the Nix +daemon service, then restart it:</para> + +<screen> +$ sudo launchctl setenv NIX_SSL_CERT_FILE /etc/ssl/my-certificate-bundle.crt +$ sudo launchctl kickstart -k system/org.nixos.nix-daemon +</screen> +</section> + +<section xml:id="sec-installer-proxy-settings"> + +<title>Proxy Environment Variables</title> + +<para>The Nix installer has special handling for these proxy-related +environment variables: +<varname>http_proxy</varname>, <varname>https_proxy</varname>, +<varname>ftp_proxy</varname>, <varname>no_proxy</varname>, +<varname>HTTP_PROXY</varname>, <varname>HTTPS_PROXY</varname>, +<varname>FTP_PROXY</varname>, <varname>NO_PROXY</varname>. +</para> +<para>If any of these variables are set when running the Nix installer, +then the installer will create an override file at +<filename>/etc/systemd/system/nix-daemon.service.d/override.conf</filename> +so <command>nix-daemon</command> will use them. +</para> +</section> + +</section> +</chapter> |