96 lines
2.6 KiB
Nix
96 lines
2.6 KiB
Nix
{ stdenv
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, pkgs
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, lib
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, utils
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}:
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{ configDir ? "/etc/keycloak"
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, configFile ? "keycloak.conf"
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, user ? "keycloak"
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, group ? "keycloak"
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, dbType ? "postgres"
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, dbPasswordFile
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, postgresServiceName
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, initialAdminUsername ? null
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, initialAdminFile ? null
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}:
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{ ... }:
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assert lib.assertOneOf "dbType" dbType ["postgres"];
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let
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keycloak = pkgs.keycloak.override {
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# This is needed for keycloak to build with the correct driver.
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confFile = pkgs.writeText "keycloak.conf" ''
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db=${dbType}
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'';
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};
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in
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utils.systemd.mkService rec {
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name = "keycloak";
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content = ''
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[Unit]
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Description=Keycloak server
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After=network-online.target
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Wants=network-online.target systemd-networkd-wait-online.service ${postgresServiceName}
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[Service]
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User=${user}
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Group=${group}
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EnvironmentFile=${dbPasswordFile}
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${if initialAdminFile != null then "Environment=KEYCLOAK_ADMIN="+initialAdminUsername else ""}
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${if initialAdminFile != null then "EnvironmentFile="+initialAdminFile else ""}
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Environment=PATH=${pkgs.coreutils}/bin
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Environment=KC_HOME_DIR="/run/keycloak"
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# running the ExecStartPre as root is not ideal, but at the moment
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# the only solution for Quarkus modifying the serialized
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# data under <keycloak-home>/lib/quarkus
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# Raised upstream as https://github.com/keycloak/keycloak/discussions/10323
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# ExecStartPre=!${keycloak}/bin/kc.sh -cf ${configDir}/${configFile} build
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ExecStart=${keycloak}/bin/kc.sh -cf ${configDir}/${configFile} start
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# ReadWritePaths=/var/lib/keycloak
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# ReadWritePaths=/var/log/keycloak
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# ReadWritePaths=/usr/share/java/keycloak/lib/quarkus
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# ReadOnlyPaths=${configDir}
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RuntimeDirectory=keycloak
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DynamicUser=true
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# Disable timeout logic and wait until process is stopped
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TimeoutStopSec=0
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TimeoutStartSec=10min
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# SIGTERM signal is used to stop the Java process
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KillSignal=SIGTERM
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# Send the signal only to the JVM rather than its control group
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KillMode=process
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# Java process is never killed
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SendSIGKILL=no
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# When a JVM receives a SIGTERM signal it exits with code 143
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SuccessExitStatus=143
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# Hardening options
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# CapabilityBoundingSet=
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# AmbientCapabilities=CAP_NET_BIND_SERVICES
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# NoNewPrivileges=true
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# Fails with:
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# Failed to set up mount namespacing: /run/systemd/unit-root/var/lib/keycloak: No such file or directory
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# ProtectHome=true
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# ProtectSystem=strict
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# ProtectKernelTunables=true
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# ProtectKernelModules=true
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# ProtectControlGroups=true
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# PrivateTmp=true
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# PrivateDevices=true
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# LockPersonality=true
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[Install]
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WantedBy=multi-user.target
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'';
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}
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