nixos-container: Syntax fixes
Get rid of the "or null" stuff. Also change 'cfg . "foo"' to 'cfg.foo'.
Also fixed what appears to be an actual bug: in postStartScript,
cfg.attribute (where attribute is a function argument) should be
cfg.${attribute}.
This commit is contained in:
Eelco Dolstra
parent
b8a8575b1b
commit
b9df84cd4f
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@ -12,21 +12,21 @@ let
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''
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echo "Bringing ${name} up"
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ip link set dev ${name} up
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${optionalString (cfg . "localAddress" or null != null) ''
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${optionalString (cfg.localAddress != null) ''
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echo "Setting ip for ${name}"
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ip addr add ${cfg . "localAddress"} dev ${name}
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ip addr add ${cfg.localAddress} dev ${name}
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''}
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${optionalString (cfg . "localAddress6" or null != null) ''
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${optionalString (cfg.localAddress6 != null) ''
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echo "Setting ip6 for ${name}"
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ip -6 addr add ${cfg . "localAddress6"} dev ${name}
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ip -6 addr add ${cfg.localAddress6} dev ${name}
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''}
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${optionalString (cfg . "hostAddress" or null != null) ''
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${optionalString (cfg.hostAddress != null) ''
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echo "Setting route to host for ${name}"
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ip route add ${cfg . "hostAddress"} dev ${name}
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ip route add ${cfg.hostAddress} dev ${name}
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''}
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${optionalString (cfg . "hostAddress6" or null != null) ''
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${optionalString (cfg.hostAddress6 != null) ''
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echo "Setting route6 to host for ${name}"
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ip -6 route add ${cfg . "hostAddress6"} dev ${name}
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ip -6 route add ${cfg.hostAddress6} dev ${name}
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''}
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''
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);
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@ -56,9 +56,7 @@ let
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ip -6 route add default via $HOST_ADDRESS6
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fi
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${concatStringsSep "\n" (mapAttrsToList renderExtraVeth cfg . "extraVeths" or {})}
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ip a
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ip r
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${concatStringsSep "\n" (mapAttrsToList renderExtraVeth cfg.extraVeths)}
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fi
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# Start the regular stage 1 script.
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@ -67,7 +65,8 @@ let
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);
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nspawnExtraVethArgs = (name: cfg: "--network-veth-extra=${name}");
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startScript = (cfg:
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startScript = cfg:
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''
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mkdir -p -m 0755 "$root/etc" "$root/var/lib"
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mkdir -p -m 0700 "$root/var/lib/private" "$root/root" /run/containers
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@ -92,11 +91,7 @@ let
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fi
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fi
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${if cfg . "extraVeths" or null != null then
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''extraFlags+=" ${concatStringsSep " " (mapAttrsToList nspawnExtraVethArgs cfg . "extraVeths" or {})}"''
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else
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''# No extra veth pairs to create''
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}
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extraFlags+=" ${concatStringsSep " " (mapAttrsToList nspawnExtraVethArgs cfg.extraVeths)}"
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for iface in $INTERFACES; do
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extraFlags+=" --network-interface=$iface"
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@ -135,10 +130,9 @@ let
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--setenv LOCAL_ADDRESS6="$LOCAL_ADDRESS6" \
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--setenv PATH="$PATH" \
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${containerInit cfg} "''${SYSTEM_PATH:-/nix/var/nix/profiles/system}/init"
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''
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);
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'';
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preStartScript = (cfg:
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preStartScript = cfg:
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''
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# Clean up existing machined registration and interfaces.
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machinectl terminate "$INSTANCE" 2> /dev/null || true
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@ -151,45 +145,43 @@ let
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${concatStringsSep "\n" (
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mapAttrsToList (name: cfg:
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''ip link del dev ${name} 2> /dev/null || true ''
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) cfg . "extraVeths" or {}
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) cfg.extraVeths
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)}
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''
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);
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'';
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postStartScript = (cfg:
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let
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ipcall = (cfg: ipcmd: variable: attribute:
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if cfg . attribute or null == null then
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ipcall = cfg: ipcmd: variable: attribute:
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if cfg.${attribute} == null then
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''
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if [ -n "${variable}" ]; then
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${ipcmd} add ${variable} dev $ifaceHost
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fi
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''
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else
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''${ipcmd} add ${cfg . attribute} dev $ifaceHost''
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);
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renderExtraVeth = (name: cfg:
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if cfg . "hostBridge" or null != null then
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''${ipcmd} add ${cfg.attribute} dev $ifaceHost'';
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renderExtraVeth = name: cfg:
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if cfg.hostBridge != null then
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''
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# Add ${name} to bridge ${cfg.hostBridge}
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ip link set dev ${name} master ${cfg.hostBridge} up
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''
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else
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''
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# Set IPs and routes for ${name}
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${optionalString (cfg . "hostAddress" or null != null) ''
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ip addr add ${cfg . "hostAddress"} dev ${name}
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''}
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${optionalString (cfg . "hostAddress6" or null != null) ''
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ip -6 addr add ${cfg . "hostAddress6"} dev ${name}
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''}
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${optionalString (cfg . "localAddress" or null != null) ''
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ip route add ${cfg . "localAddress"} dev ${name}
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''}
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${optionalString (cfg . "localAddress6" or null != null) ''
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ip -6 route add ${cfg . "localAddress6"} dev ${name}
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''}
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''
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);
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# Set IPs and routes for ${name}
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${optionalString (cfg.hostAddress != null) ''
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ip addr add ${cfg.hostAddress} dev ${name}
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''}
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${optionalString (cfg.hostAddress6 != null) ''
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ip -6 addr add ${cfg.hostAddress6} dev ${name}
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''}
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${optionalString (cfg.localAddress != null) ''
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ip route add ${cfg.localAddress} dev ${name}
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''}
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${optionalString (cfg.localAddress6 != null) ''
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ip -6 route add ${cfg.localAddress6} dev ${name}
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''}
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'';
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in
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''
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if [ "$PRIVATE_NETWORK" = 1 ]; then
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@ -202,7 +194,7 @@ let
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${ipcall cfg "ip route" "$LOCAL_ADDRESS" "localAddress"}
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${ipcall cfg "ip -6 route" "$LOCAL_ADDRESS6" "localAddress6"}
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fi
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${concatStringsSep "\n" (mapAttrsToList renderExtraVeth cfg . "extraVeths" or {})}
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${concatStringsSep "\n" (mapAttrsToList renderExtraVeth cfg.extraVeths)}
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fi
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# Get the leader PID so that we can signal it in
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@ -307,6 +299,15 @@ let
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};
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dummyConfig =
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{
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extraVeths = {};
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hostAddress = null;
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hostAddress6 = null;
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localAddress = null;
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localAddress6 = null;
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};
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in
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{
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@ -451,7 +452,7 @@ in
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containers. Each container appears as a service
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<literal>container-<replaceable>name</replaceable></literal>
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on the host system, allowing it to be started and stopped via
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<command>systemctl</command> .
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<command>systemctl</command>.
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'';
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};
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@ -470,11 +471,11 @@ in
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environment.INSTANCE = "%i";
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environment.root = "/var/lib/containers/%i";
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preStart = preStartScript {};
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preStart = preStartScript dummyConfig;
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script = startScript {};
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script = startScript dummyConfig;
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postStart = postStartScript {};
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postStart = postStartScript dummyConfig;
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preStop =
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''
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