create-lx-container.sh: add support vor LXC Version 3.

create-lx-container.sh

@@ -142,6 +142,35 @@ netmask2cidr() {
   echo "${len}"
 }
 
+detect_os_1 () {
+
+   if $(which lsb_release > /dev/null 2>&1) ; then
+
+      os_dist="$(lsb_release -i | awk '{print tolower($3)}')"
+      os_version="$(lsb_release -r | awk '{print tolower($2)}')"
+      os_codename="$(lsb_release -c | awk '{print tolower($2)}')"
+
+      if [[ "$os_dist" = "debian" ]]; then
+         if $(echo "$os_version" | grep -q '\.') ; then
+            os_version=$(echo "$os_version" | cut --delimiter='.' -f1)
+         fi
+      fi
+
+   elif [[ -e "/etc/os-release" ]]; then
+
+      . /etc/os-release
+
+      os_dist=$ID
+      os_version=${VERSION_ID}
+
+   fi
+
+   # remove whitespace from os_dist and os_version
+   os_dist="${os_dist// /}"
+   os_version="${os_version// /}"
+
+}
+
 
 # -------------
 # - Running in a terminal?
@@ -166,9 +195,10 @@ DEFAULT_IPV4_NETMASK_1="255.255.255.0"
 
 DEFAULT_IPV6_PREFIX=64
 
+DEFAULT_CODENAME="$(lsb_release -c | awk '{print tolower($2)}')"
+
 if [[ -f "$conf_file" ]]; then
    source "$conf_file"
-   fatal "Configuration file '$(basename ${conf_file})' not found!"
 else
    warn "No Configuration file '$(basename ${conf_file})'. Using default values.."
 fi
@@ -278,16 +308,19 @@ echo ""
 
 echo "   # Insert the Code name of the Linux Distribution."
 echo "   #"
-echo "   # Example for debian: 'stretch'"
+echo "   # Type <return> to accept the default '$DEFAULT_CODENAME'."
 echo ""
-echononl "\033[1mCode name:\033[m "
+echononl "\033[1mCode name [${DEFAULT_CODENAME}]:\033[m "
 read LXC_RELEASE
+if [[ -z "$(trim $LXC_RELEASE)" ]] ; then
+   LXC_RELEASE="$DEFAULT_CODENAME"
+fi
 
-while [[ -z "$(trim $LXC_RELEASE)" ]]; do
+#while [[ -z "$(trim $LXC_RELEASE)" ]]; do
-   warn "Parameter is needed. Try again.."
+#   warn "Parameter is needed. Try again.."
-	echononl "\033[1mCode name:\033[m "
+#	echononl "\033[1mCode name:\033[m "
-   read LXC_RELEASE
+#   read LXC_RELEASE
-done
+#done
 
 echo ""
 echo -e "\033[32m--\033[m"
@@ -541,6 +574,11 @@ while [[ -z "$(trim $IPV4_NETMASK_1)" ]]; do
 done
 HOSTNAME="$(echo "$FQ_HOSTNAME" | cut -f1 -d'.')"
 
+# - Determin LXC Version
+# -
+LXC_VERSION="$(lxc-info --version)"
+declare -i LXC_MAJOR_VERSION=$(echo $LXC_VERSION | cut -d '.' -f1)
+
 
 echo ""
 echo ""
@@ -548,6 +586,9 @@ echo -e "  \033[32m---\033[m"
 echo -e "   \033[32m\033[1mParameter Summary - create new LX Container \033[m\033[1m$LXC_NAME\033[m"
 echo -e "  \033[32m---\033[m"
 echo ""
+echo "   LXC Version..............................: $LXC_VERSION"
+echo "   LXC Major Version........................: $LXC_MAJOR_VERSION"
+echo ""
 echo "   Base directory LX Containers.............: $LXC_ROOT_DIR"
 echo "   Root directory new LX Container..........: $LXC_CONTAINER_DIR"
 echo ""
@@ -556,16 +597,18 @@ echo "   Linux distribution.......................: $LXC_DIST"
 echo "   Code name (or release number)............: $LXC_RELEASE"
 echo ""
 echo "   MAC Address (first) network device.......: $MAC_ADDRESS_1"
+echo ""
 echo "   IPv4 Address (first).....................: $IPV4_ADDRESS_1"
 echo "   IPv4 Gateway Address (first).............: $IPV4_GATEWAY_1"
+echo "   Netmask first IPv4 Address...............: $IPV4_NETMASK_1"
+echo "   CIDR (IPv4 Prefix) of netmask............: $IPV4_PREFIX_1"
+echo ""
 if [[ -n "$IPV6_ADDRESS_1" ]] ; then
    echo "   IPv6 Address (first).....................: $IPV6_ADDRESS_1"
    echo "   IPv6 Gateway Address (first).............: $IPV6_GATEWAY_1"
 else
    echo -e "   IPv6 Address (first).....................: - \033[33mNot set\033[m - "
 fi
-echo "   Netmask first IPv4 Address...............: $IPV4_NETMASK_1"
-echo "   CIDR (IPv4 Prefix) of netmask............: $IPV4_PREFIX_1"
 if $_second_ipv4 ; then
 	echo ""
 	echo "   MAC Address (second) network device......: $MAC_ADDRESS_2"
@@ -861,10 +904,11 @@ fi
 
 # - Create the Container configuration file
 # -
-msg="Create Container Configuration '${LXC_CONTAINER_DIR}/config' .."
+msg="Create Container Configuration '${LXC_CONTAINER_DIR}/config (LXC Version $LXC_VERSION)' .."
 echo -en "\033[1G   \033[1;30m[ ... ]    \033[32m$msg\033[m"
 
 _failed=false
+if [[ $LXC_MAJOR_VERSION -lt 3 ]]; then
    cat << EOF > ${LXC_CONTAINER_DIR}/config 2> $err_msg
 lxc.rootfs = ${LXC_CONTAINER_DIR}/rootfs
 
@@ -922,13 +966,13 @@ lxc.network.hwaddr = $MAC_ADDRESS_2
 lxc.network.ipv4 = ${IPV4_ADDRESS_2}/$IPV4_PREFIX_2
 ## IPv6
 EOF
-   if [[ -n "$IPV4_ADDRESS_2" ]]; then
+      if [[ -n "$IPV6_ADDRESS_2" ]]; then
          cat << EOF >> ${LXC_CONTAINER_DIR}/config 2>> $err_msg
-#lxc.network.ipv6 = ${IPV6_ADDRESS_2}/$IPV6_PREFIX_2
+lxc.network.ipv6 = ${IPV6_ADDRESS_2}/$IPV6_PREFIX_2
 EOF
       else
          cat << EOF >> ${LXC_CONTAINER_DIR}/config 2>> $err_msg
-lxc.network.ipv6 = ${IPV6_ADDRESS_2}/$IPV6_PREFIX_2
+#lxc.network.ipv6 = ${IPV6_ADDRESS_2}/$IPV6_PREFIX_2
 
 EOF
       fi
@@ -936,6 +980,89 @@ EOF
       if [[ $? -ne 0 ]]; then
          _failed=true
       fi
+   fi
+else
+
+
+
+   cat << EOF > ${LXC_CONTAINER_DIR}/config 2> $err_msg
+lxc.rootfs.path = ${LXC_CONTAINER_DIR}/rootfs
+
+# Common configuration
+lxc.include = /usr/share/lxc/config/${LXC_DIST}.common.conf
+
+
+# Container specific configuration
+lxc.mount.fstab = ${LXC_CONTAINER_DIR}/fstab
+lxc.uts.name = $LXC_NAME
+lxc.arch = amd64
+lxc.autodev = 1
+
+
+# Network configuration
+
+###  Device 1
+lxc.net.0.type = veth
+lxc.net.0.flags = up
+lxc.net.0.link = br0
+lxc.net.0.name = eth0
+lxc.net.0.hwaddr = $MAC_ADDRESS_1
+# IPv4
+lxc.net.0.ipv4.address = ${IPV4_ADDRESS_1}/$IPV4_PREFIX_1
+lxc.net.0.ipv4.gateway = ${IPV4_GATEWAY_1}
+# IPv6
+EOF
+   if [[ -n "${IPV6_ADDRESS_1}" ]] ; then
+      cat << EOF >> ${LXC_CONTAINER_DIR}/config 2>> $err_msg
+lxc.net.0.ipv6.address = ${IPV6_ADDRESS_1}/$IPV6_PREFIX_1
+lxc.net.0.ipv6.gateway = $IPV6_GATEWAY_1
+EOF
+   else
+      cat << EOF >> ${LXC_CONTAINER_DIR}/config 2>> $err_msg
+#lxc.net.0.ipv6.address = ${IPV6_ADDRESS_1}/$IPV6_PREFIX_1
+#lxc.net.0.ipv6.gateway = $IPV6_GATEWAY_1
+EOF
+
+   fi
+
+   if [[ $? -ne 0 ]]; then
+      _failed=true
+   fi
+
+   if [[ -n "$IPV4_ADDRESS_2" ]]; then
+      cat << EOF >> ${LXC_CONTAINER_DIR}/config 2>> $err_msg
+###  Device 2
+lxc.net.1.type = veth
+lxc.net.1.flags = up
+lxc.net.1.link = br0
+lxc.net.1.name = eth1
+lxc.net.1.hwaddr = $MAC_ADDRESS_2
+## IPv4
+lxc.net.1.ipv4.address = ${IPV4_ADDRESS_2}/$IPV4_PREFIX_2
+## IPv6
+EOF
+      if [[ -n "$IPV6_ADDRESS_2" ]]; then
+         cat << EOF >> ${LXC_CONTAINER_DIR}/config 2>> $err_msg
+lxc.net.1.ipv6.address = ${IPV6_ADDRESS_2}/$IPV6_PREFIX_2
+EOF
+      else
+         cat << EOF >> ${LXC_CONTAINER_DIR}/config 2>> $err_msg
+#lxc.net.1.ipv6.address = ${IPV6_ADDRESS_2}/$IPV6_PREFIX_2
+
+EOF
+      fi
+
+      if [[ $? -ne 0 ]]; then
+         _failed=true
+      fi
+   fi
+
+
+
+
+
+
+
 fi
 
 cat << EOF >> ${LXC_CONTAINER_DIR}/config 2>> $err_msg
@@ -950,6 +1077,10 @@ cat << EOF >> ${LXC_CONTAINER_DIR}/config 2>> $err_msg
 lxc.start.auto = 1
 lxc.start.delay = 5
 lxc.start.order = 100
+
+# Limt memory to 1GB less than full Memory of the server
+# -
+lxc.cgroup.memory.limit_in_bytes = $(( $(free -b | grep -oP '\d+' | head -n 1)-1000000000 ))
 EOF
 if [[ $? -ne 0 ]]; then
 	_failed=true