Merge "Add Gentoo to the dhcp-all-interfaces element"

elements/dhcp-all-interfaces/README.rst

@@ -9,6 +9,11 @@ to know ahead of time which one is which, so we will simply run a
 DHCP client on all interfaces with real MAC addresses (except lo) that
 are visible on the first boot.
 
-The script /usr/local/sbin/dhcp-all-interfaces.sh will be called
-early in each boot and will scan available network interfaces and
-ensure they are configured properly before networking services are started.
+On non-Gentoo based distributions the script
+/usr/local/sbin/dhcp-all-interfaces.sh will be called early in each
+boot and will scan available network interfaces and ensure they are
+configured properly before networking services are started.
+
+On Gentoo based distributions we will install the dhcpcd package and
+ensure the service starts at boot.  This service automatically sets
+up all interfaces found via dhcp and/or dhcpv6 (or SLAAC).

elements/dhcp-all-interfaces/element-deps

@@ -0,0 +1,2 @@
+package-installs
+pkg-map

elements/dhcp-all-interfaces/install.d/50-dhcp-all-interfaces

@@ -8,7 +8,10 @@ set -o pipefail
 
 SCRIPTDIR=$(dirname $0)
 
-install -D -g root -o root -m 0755 ${SCRIPTDIR}/dhcp-all-interfaces.sh /usr/local/sbin/dhcp-all-interfaces.sh
+# this script is not needed on Gentoo.
+if [ "$DISTRO_NAME" != "gentoo" ]; then
+    install -D -g root -o root -m 0755 ${SCRIPTDIR}/dhcp-all-interfaces.sh /usr/local/sbin/dhcp-all-interfaces.sh
+fi
 
 DIB_INIT_SYSTEM=$(dib-init-system)
 if [ "$DIB_INIT_SYSTEM" == "upstart" ]; then
@@ -19,4 +22,10 @@ elif [ "$DIB_INIT_SYSTEM" == "systemd" ]; then
 elif [ "$DIB_INIT_SYSTEM" == "sysv" ]; then
     install -D -g root -o root -m 0755 ${SCRIPTDIR}/dhcp-all-interfaces.init /etc/init.d/dhcp-all-interfaces
     update-rc.d dhcp-all-interfaces defaults
+elif [ "$DISTRO_NAME" == "gentoo" ]; then
+    # let ipv6 use normal slaac
+    sed -i 's/slaac/#slaac/g' /etc/dhcpcd.conf
+    # don't let dhcpcd set domain name or hostname
+    sed -i 's/domain_name\,\ domain_search\,\ host_name/domain_search/g' /etc/dhcpcd.conf
+    rc-update add dhcpcd default
 fi

elements/dhcp-all-interfaces/install.d/60-remove-cloud-image-interfaces

@@ -18,6 +18,9 @@ rm -f /etc/network/interfaces.d/eth*.cfg
 # Debian
 rm -f /etc/network/interfaces.d/eth*
 
+# Gentoo
+rm -f /etc/conf.d/net*
+
 # /etc/network/interfaces distributions
 if [ -f "/etc/network/interfaces" ]; then
     printf "auto lo\niface lo inet loopback\n\n" > /etc/network/interfaces

elements/dhcp-all-interfaces/package-installs.yaml

@@ -0,0 +1 @@
+dhcpcd:

elements/dhcp-all-interfaces/pkg-map

@@ -0,0 +1,10 @@
+{
+  "family": {
+    "gentoo": {
+      "dhcpcd": "net-misc/dhcpcd"
+    }
+  },
+  "default": {
+    "dhcpcd": ""
+  }
+}