From 22149d17ff17e9870b3245f07abe05e5d026fdd3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Isma=C3=ABl=20Bouya?= <ismael.bouya@normalesup.org>
Date: Mon, 4 Mar 2019 23:39:18 +0100
Subject: Add task server

Related issue: https://git.immae.eu/mantisbt/view.php?id=67
---
 nixops/modules/task/default.nix | 131 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 131 insertions(+)
 create mode 100644 nixops/modules/task/default.nix

(limited to 'nixops/modules/task/default.nix')

diff --git a/nixops/modules/task/default.nix b/nixops/modules/task/default.nix
new file mode 100644
index 0000000..3dc3299
--- /dev/null
+++ b/nixops/modules/task/default.nix
@@ -0,0 +1,131 @@
+{ lib, pkgs, config, myconfig, mylibs, ... }:
+let
+  cfg = config.services.myTasks;
+  vardir = config.services.taskserver.dataDir;
+  fqdn = "task.immae.eu";
+  user = config.services.taskserver.user;
+  env = myconfig.env.tools.task;
+  group = config.services.taskserver.group;
+in {
+  options.services.myTasks = {
+    enable = lib.mkEnableOption "my tasks service";
+  };
+
+  config = lib.mkIf cfg.enable {
+    security.acme.certs."eldiron".extraDomains.${fqdn} = null;
+    services.myWebsites.tools.modules = [ "proxy_fcgi" ];
+    services.myWebsites.tools.vhostConfs.task = {
+      certName    = "eldiron";
+      hosts       = [ "task.immae.eu" ];
+      root        = "/run/current-system/webapps/_task";
+      extraConfig = [ ''
+        <Directory /run/current-system/webapps/_task>
+          DirectoryIndex index.php
+          Use LDAPConnect
+          Require ldap-group cn=users,cn=taskwarrior,ou=services,dc=immae,dc=eu
+          <FilesMatch "\.php$">
+            SetHandler "proxy:unix:/var/run/phpfpm/task.sock|fcgi://localhost"
+          </FilesMatch>
+          SetEnv TASKD_HOST          "${fqdn}:${toString config.services.taskserver.listenPort}"
+          SetEnv TASKD_VARDIR        "${vardir}"
+          SetEnv TASKD_LDAP_HOST     "ldaps://${env.ldap.host}"
+          SetEnv TASKD_LDAP_DN       "${env.ldap.dn}"
+          SetEnv TASKD_LDAP_PASSWORD "${env.ldap.password}"
+          SetEnv TASKD_LDAP_BASE     "${env.ldap.base}"
+          SetEnv TASKD_LDAP_FILTER   "${env.ldap.search}"
+        </Directory>
+        '' ];
+    };
+    services.myPhpfpm.poolConfigs = {
+      tasks = ''
+        listen = /var/run/phpfpm/task.sock
+        user = ${user}
+        group = ${group}
+        listen.owner = wwwrun
+        listen.group = wwwrun
+        pm = dynamic
+        pm.max_children = 60
+        pm.start_servers = 2
+        pm.min_spare_servers = 1
+        pm.max_spare_servers = 10
+
+        ; Needed to avoid clashes in browser cookies (same domain)
+        env[PATH] = "/etc/profiles/per-user/${user}/bin"
+        php_value[session.name] = TaskPHPSESSID
+        php_admin_value[open_basedir] = "${./www}:/tmp:${vardir}:/etc/profiles/per-user/${user}/bin/"
+      '';
+    };
+
+    system.extraSystemBuilderCmds = ''
+      ln -s ${./www} $out/webapps/_task
+      '';
+
+    security.acme.certs."task" = config.services.myCertificates.certConfig // {
+      inherit user group;
+      plugins = [ "fullchain.pem" "key.pem" "cert.pem" "account_key.json" ];
+      domain = fqdn;
+      postRun = ''
+        systemctl restart taskserver.service
+      '';
+    };
+
+    users.users.${user}.packages = [
+      (pkgs.runCommand "taskserver-user-certs" {} ''
+        mkdir -p $out/bin
+        cat > $out/bin/taskserver-user-certs <<"EOF"
+        #!/usr/bin/env bash
+
+        user=$1
+
+        silent_certtool() {
+          if ! output="$("${pkgs.gnutls.bin}/bin/certtool" "$@" 2>&1)"; then
+            echo "GNUTLS certtool invocation failed with output:" >&2
+            echo "$output" >&2
+          fi
+        }
+
+        silent_certtool -p \
+          --bits 4096 \
+          --outfile "${vardir}/userkeys/$user.key.pem"
+        ${pkgs.gnused}/bin/sed -i -n -e '/^-----BEGIN RSA PRIVATE KEY-----$/,$p' "${vardir}/userkeys/$user.key.pem"
+
+        silent_certtool -c \
+          --template "${pkgs.writeText "taskserver-ca.template" ''
+            tls_www_client
+            encryption_key
+            signing_key
+            expiration_days = 3650
+          ''}" \
+          --load-ca-certificate "${vardir}/keys/ca.cert" \
+          --load-ca-privkey "${vardir}/keys/ca.key" \
+          --load-privkey "${vardir}/userkeys/$user.key.pem" \
+          --outfile "${vardir}/userkeys/$user.cert.pem"
+        EOF
+        chmod a+x $out/bin/taskserver-user-certs
+        patchShebangs $out/bin/taskserver-user-certs
+        '')
+    ];
+
+    systemd.services.taskserver-ca.postStart = ''
+      chown :${group} "${vardir}/keys/ca.key"
+      chmod g+r "${vardir}/keys/ca.key"
+      '';
+
+    system.activationScripts.taskserver = {
+      deps = [ "users" ];
+      text = ''
+        install -m 0750 -o ${user} -g ${group} -d ${vardir}
+        install -m 0750 -o ${user} -g ${group} -d ${vardir}/userkeys
+        install -m 0750 -o ${user} -g ${group} -d ${vardir}/keys
+      '';
+    };
+
+    services.taskserver = {
+      enable = true;
+      allowedClientIDs = [ "^task [2-9]" "^Mirakel [1-9]" ];
+      inherit fqdn;
+      listenHost = "::";
+      requestLimit = 104857600;
+    };
+  };
+}
-- 
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