F #911: Add alias/es support IPv4 (#136)

* Add alias debian context.
* Add alias centos context.
* Add alias alpine context.

src/etc/one-context.d/loc-10-network##apk.one

@@ -123,6 +123,16 @@ EOT
     echo ""
 }
 
+gen_alias_conf() {
+    cat <<EOT
+iface $DEV inet static
+  address $IP
+  netmask $MASK
+EOT
+
+echo ""
+}
+
 gen_iface6_conf() {
     cat <<EOT
 iface $DEV inet6 static
@@ -171,6 +181,11 @@ get_context_interfaces()
     env | grep -E "^ETH[0-9]+_MAC=" | sed 's/_.*$//' | sort
 }
 
+get_interface_alias()
+{
+    env | grep -E "^ETH${INDEX}_ALIAS[0-9]+_MAC=" | cut -d '_' -f 2 | sort
+}
+
 get_dev()
 {
     list="$1"
@@ -218,6 +233,21 @@ EOT
 
         [[ -n $IP ]] && gen_iface_conf
         [[ -n $IP6 ]] && gen_iface6_conf
+
+        INDEX=${interface: -1}
+        ALIAS=$(get_interface_alias)
+
+        for nic_alias in $ALIAS; do
+            UPCASE_DEV="ETH${INDEX}_${nic_alias}"
+            IP=$(get_ip)
+            MASK=$(get_mask)
+            EXTERNAL=$(get_iface_var "EXTERNAL")
+            EXTERNAL=${EXTERNAL^^}
+
+            if [[ -n $IP ]] && ([ -z "${EXTERNAL}" ] || [ $EXTERNAL == "NO" ]); then
+                gen_alias_conf
+            fi
+        done
     done
 }
 

src/etc/one-context.d/loc-10-network##deb.one

@@ -152,6 +152,16 @@ EOT
     echo ""
 }
 
+gen_alias_conf() {
+    cat <<EOT
+iface $DEV inet static
+  address $IP
+  netmask $MASK
+EOT
+
+echo ""
+}
+
 gen_iface6_conf() {
     cat <<EOT
 iface $DEV inet6 static
@@ -198,6 +208,12 @@ get_context_interfaces()
     env | grep -E "^ETH[0-9]+_MAC=" | sed 's/_.*$//' | sort
 }
 
+
+get_interface_alias()
+{
+    env | grep -E "^ETH${INDEX}_ALIAS[0-9]+_MAC=" | cut -d '_' -f 2 | sort
+}
+
 get_dev()
 {
     list="$1"
@@ -244,6 +260,20 @@ EOT
         [[ -n $IP ]] && gen_iface_conf
         [[ -n $IP6 ]] && gen_iface6_conf
 
+        INDEX=${interface: -1}
+        ALIAS=$(get_interface_alias)
+
+        for nic_alias in $ALIAS; do
+            UPCASE_DEV="ETH${INDEX}_${nic_alias}"
+            IP=$(get_ip)
+            MASK=$(get_mask)
+            EXTERNAL=$(get_iface_var "EXTERNAL")
+            EXTERNAL=${EXTERNAL^^}
+
+            if [ ! -z $IP ] && ([ -z "${EXTERNAL}" ] || [ $EXTERNAL == "NO" ]); then
+                gen_alias_conf
+            fi
+        done
     done
 }
 

src/etc/one-context.d/loc-10-network##rpm.one

@@ -117,6 +117,12 @@ EOT
     fi
 }
 
+gen_alias_conf() {
+    cat <<EOT
+IPADDR$ALIAS_INDEX="$IP"
+EOT
+}
+
 gen_iface6_conf() {
     if [ "$CONFIG_PATH" = "/etc/sysconfig/network" ]; then
         echo "IPADDR_0=$IP6/${IP6_PREFIX_LENGTH:-64}"
@@ -164,6 +170,11 @@ get_context_interfaces()
     env | grep -E "^ETH[0-9]+_MAC=" | sed 's/_.*$//' | sort
 }
 
+get_interface_alias()
+{
+    env | grep -E "^ETH${INDEX}_ALIAS[0-9]+_MAC=" | cut -d '_' -f 2 | sort
+}
+
 get_dev()
 {
     list="$1"
@@ -221,9 +232,27 @@ EOT
                 echo "ONBOOT=yes"
             fi
 
+            INDEX=${interface: -1}
+            ALIAS=$(get_interface_alias)
+            ALIAS_INDEX=0
+
             [[ -n $IP ]] && gen_iface_conf
             [[ -n $IP6 ]] && gen_iface6_conf
 
+            for nic_alias in $ALIAS; do
+                UPCASE_DEV="ETH${INDEX}_${nic_alias}"
+                IP=$(get_ip)
+                MASK=$(get_mask)
+                EXTERNAL=$(get_iface_var "EXTERNAL")
+                EXTERNAL=${EXTERNAL^^}
+
+                if [ -n $IP ] && ([ -z "${EXTERNAL}" ] || [ $EXTERNAL == "NO" ]); then
+                    gen_alias_conf
+                fi
+
+                ALIAS_INDEX=$((ALIAS_INDEX + 1))
+            done
+
         ) > ${CONFIG_PATH}/ifcfg-${DEV}
 
         ifup ${DEV}