Only remove devices.tar.gz if it exists

[lxc-debian-unprivileged.git] / templates / lxc-debian-unprivileged

diff --git a/templates/lxc-debian-unprivileged b/templates/lxc-debian-unprivileged
index 42ece9e509f61156e32cd1d97ff4ea4bd0c71fc8..dd7bdafc11e5e862f594dc8378e7697a24836a29 100755 (executable)
--- a/templates/lxc-debian-unprivileged
+++ b/templates/lxc-debian-unprivileged
@@ -54,11 +54,40 @@ Required arguments:
 
 Optional arguments:
 [ -m | --mirror <mirrorurl> ]: The debian mirror to user
 
 Optional arguments:
 [ -m | --mirror <mirrorurl> ]: The debian mirror to user

+[ -n | --network <networkspec> ]: How to configure networking
+
+Network spec:
+  <type>[,options]
+
+  type is one of:
+    dhcp4: v4 dhcp will be enabled.
+    dhcp6: v6 dhcp will be enabled.
+    dhcp: v4 and v6 dhcp will be enabled.
+    static: no dhcp will be enabled
+
+  options:
+    this is a , seperated list, and sets up static assignments for v4 or v6,
+    regardless of type.
+    The order of arguments is
+      staticv4/staticnetmask
+      staticv6/staticv6netmask
+      gateway
+      v6gateway
+
+  examples:
+
+    --network dhcp4 (default)
+    --network dhcp6 (v6 dhcp)
+    --network dhcp  (v4 and v6 dhcp)
+    --network dhcp4,,2001:db8:1234:5678::1/64 (dhcp4 and static v6 address)
+    --network static,,2001:db8:1234:5678::5/64,,fe80::1 (static v6)
+    --network static,192.0.2.15/24,,192.0.2.1 (static v4)
+

 EOF
     return 0
 }
 
 EOF
     return 0
 }
 

-options=$(getopt -o r:m:h -l release:,mirror:,help,mapped-uid:,mapped-gid:,name:,path:,rootfs: -- "$@")
+options=$(getopt -o r:m:n:h -l release:,mirror:,network:,help,mapped-uid:,mapped-gid:,name:,path:,rootfs: -- "$@")

 
 if [ $? -ne 0 ]; then
     usage
 
 if [ $? -ne 0 ]; then
     usage


@@ -69,6 +98,7 @@ eval set -- "$options"
 
 DEBIAN_MIRROR="http://mirror.mythic-beasts.com/debian/"
 DEBIAN_RELEASE="jessie"
 
 DEBIAN_MIRROR="http://mirror.mythic-beasts.com/debian/"
 DEBIAN_RELEASE="jessie"

+NETWORK_CONFIG=""

 
 disable_initscripts() {
     cat <<EOF > "${LXC_ROOTFS}/usr/sbin/policy-rc.d"
 
 disable_initscripts() {
     cat <<EOF > "${LXC_ROOTFS}/usr/sbin/policy-rc.d"


@@ -90,6 +120,7 @@ while :; do
         -h|--help)      usage && exit 1;;
         -r|--release)   DEBIAN_RELEASE="$2"; shift 2;;
         -m|--mirror)    DEBIAN_MIRROR="$2"; shift 2;;
         -h|--help)      usage && exit 1;;
         -r|--release)   DEBIAN_RELEASE="$2"; shift 2;;
         -m|--mirror)    DEBIAN_MIRROR="$2"; shift 2;;

+        -n|--network)   NETWORK_CONFIG="$2"; shift 2;;

         --mapped-uid)   MAPPED_UID="$2"; shift 2;;
         --mapped-gid)   MAPPED_GID="$2"; shift 2;;
         --name)         LXC_NAME="$2"; shift 2;;
         --mapped-uid)   MAPPED_UID="$2"; shift 2;;
         --mapped-gid)   MAPPED_GID="$2"; shift 2;;
         --name)         LXC_NAME="$2"; shift 2;;


@@ -99,6 +130,136 @@ while :; do
     esac
 done
 
     esac
 done
 

+INTERFACE_DEFAULTS="auto eth0
+iface eth0 inet dhcp"
+
+generate_network_config() {
+    if [ "$NETWORK_CONFIG" == "" ]; then
+        echo "$INTERFACE_DEFAULTS"
+        return 0
+    fi
+
+    ETH0_HEADER="auto eth0"
+    ETH0_IPV4=""
+    ETH0_IPV6=""
+
+    echo "auto eth0"
+    # see if there's a type
+    network_type=${NETWORK_CONFIG/,*}
+    other_params=${NETWORK_CONFIG#*,}
+
+    v4_configured=no
+    v6_configured=no
+
+    if [ "$network_type" == "dhcp" ]; then
+        ETH0_IPV4="iface eth0 inet dhcp"
+        ETH0_IPV6="iface eth0 inet6 dhcp"
+        v4_configured=yes
+        v6_configured=yes
+    elif [ "$network_type" == "dhcp4" ]; then
+        ETH0_IPV4="iface eth0 inet dhcp"
+        v4_configured=yes
+    elif [ "$network_type" == "dhcp6" ]; then
+        ETH0_IPV6="iface eth0 inet6 dhcp"
+        v6_configured=yes
+    elif [ "$network_type" != "static" ]; then
+        echo "Unknown network type: $network_type" 1>&2
+        echo 1>&2
+        usage 1>&2
+        exit 1
+    fi
+
+    [ "$network_type" == "$other_params" ] && return 0
+
+    v4_static=${other_params/,*}
+    other_params=${other_params#*,}
+
+    if [ "$v4_static" != "" ]; then
+        if [ "$v4_configured" == "yes" ]; then
+            echo "Both v4 DHCP and Static - giving up." 1>&2
+            echo 1>&2
+            usage 1>&2
+            exit 1
+        fi
+    fi
+
+    if [ "$v4_static" == "$other_params" ]; then
+        if [ "$v4_static" != "" ]; then
+            echo "iface eth0 inet static"
+            echo "  address $v4_static"
+        fi
+    fi
+
+    v6_static=${other_params/,*}
+    other_params=${other_params#*,}
+
+    if [ "$v6_static" != "" ]; then
+        if [ "$v6_configured" == "yes" ]; then
+            echo "Both v6 DHCP and Static - giving up." 1>&2
+            echo 1>&2
+            usage 1>&2
+            exit 1
+        fi
+    fi
+
+    if [ "$v6_static" == "$other_params" ]; then
+        if [ "$v4_static" ]; then
+            echo "iface eth0 inet static"
+            echo "  address $v4_static"
+            echo
+        fi
+
+        echo "iface eth0 inet6 static"
+        echo "  address $v6_static"
+
+        return 0
+    fi
+
+    v4_gateway=${other_params/,*}
+    other_params=${other_params#*,}
+
+    if [ "$v4_gateway" == "$other_params" ]; then
+        if [ "$v4_static" != "" ]; then
+            echo "iface eth0 inet static"
+            echo "  address $v4_static"
+            [ "$v4_gateway" != "" ] && echo "  gateway $v4_gateway"
+
+            if [ "$v6_static" != "" ]; then
+                echo "iface eth0 inet6 static"
+                echo "  address $v6_static"
+            fi
+
+            return 0
+        fi
+
+        if [ "$v4_configured" == "yes" ]; then
+            echo "DHCP and static gateway not supported, giving up." 1>&2
+            echo 1>&2
+            usage 1>&2
+            exit 1
+        fi
+    fi
+
+    v6_gateway=${other_params/,*}
+
+    if [ "$v4_static" != "" ]; then
+        echo "iface eth0 inet static"
+        echo "  address $v4_static"
+        [ "$v4_gateway" != "" ] && echo "  gateway $v4_gateway"
+        echo
+    fi
+
+    if [ "$v6_static" != "" ]; then
+        echo "iface eth0 inet6 static"
+        echo "  address $v6_static"
+        [ "$v6_gateway" != "" ] && echo "  gateway $v6_gateway"
+    fi
+
+    return 0
+}
+
+INTERFACE_DETAILS="$(generate_network_config)"
+

 # rewrite the default config file
 
 sed -i -e "/lxc./{w ${LXC_PATH}/config-auto" -e "d}" "${LXC_PATH}/config"
 # rewrite the default config file
 
 sed -i -e "/lxc./{w ${LXC_PATH}/config-auto" -e "d}" "${LXC_PATH}/config"


@@ -124,7 +285,15 @@ mkdir "${LXC_PATH}/bin"
 cat <<EOF > "${LXC_PATH}/bin/mknod"
 #!/bin/sh
 
 cat <<EOF > "${LXC_PATH}/bin/mknod"
 #!/bin/sh
 

-exec touch "\$1"
+# look for the first argument that looks like a path
+for i do
+    case \$i in
+        /*)
+            exec touch "\$i"
+            ;;
+    esac
+done
+

 EOF
 
 chmod 755 "${LXC_PATH}/bin/mknod"
 EOF
 
 chmod 755 "${LXC_PATH}/bin/mknod"


@@ -133,6 +302,8 @@ export PATH="${LXC_PATH}/bin:$PATH"
 
 debootstrap --foreign --include debian-archive-keyring,ifupdown,isc-dhcp-client,locales,openssh-server $DEBIAN_RELEASE "${LXC_ROOTFS}" $DEBIAN_MIRROR
 
 
 debootstrap --foreign --include debian-archive-keyring,ifupdown,isc-dhcp-client,locales,openssh-server $DEBIAN_RELEASE "${LXC_ROOTFS}" $DEBIAN_MIRROR
 

+echo "DEBOOTSTRAP STAGE 1 COMPLETE"
+

 # now totally skip that check in the new root, because it sucks.
 sed -i -e 's#check_sane_mount () {#check_sane_mount () {\n\treturn 0#;' "${LXC_ROOTFS}/debootstrap/functions"
 
 # now totally skip that check in the new root, because it sucks.
 sed -i -e 's#check_sane_mount () {#check_sane_mount () {\n\treturn 0#;' "${LXC_ROOTFS}/debootstrap/functions"
 


@@ -144,7 +315,9 @@ keyring_dpkg=$(sed -ne "/^debian-archive-keyring/ { s#.* ##; p; }" "${LXC_ROOTFS
 (cd "${LXC_ROOTFS}" && dpkg-deb -x ".$keyring_dpkg" .)
 
 # replace the tar containing devices with something that doesn't contain any
 (cd "${LXC_ROOTFS}" && dpkg-deb -x ".$keyring_dpkg" .)
 
 # replace the tar containing devices with something that doesn't contain any

-(cd "$LXC_ROOTFS/debootstrap" && rm devices.tar.gz && tar czvf devices.tar.gz --files-from=/dev/null)
+if [ -e "$LXC_ROOTFS/debootstrap/devices.tar.gz" ]; then
+    (cd "$LXC_ROOTFS/debootstrap" && rm devices.tar.gz && tar czvf devices.tar.gz --files-from=/dev/null)
+fi

 
 # and mount a shitload of things for fun and profit...
 for file in /var/lib/lxcfs/proc/*; do
 
 # and mount a shitload of things for fun and profit...
 for file in /var/lib/lxcfs/proc/*; do


@@ -236,10 +409,7 @@ if [ -e "${LXC_ROOTFS}/lib/systemd/system/systemd-journald-audit.socket" ]; then
     touch "${LXC_ROOTFS}/etc/systemd/system/systemd-journald-audit.socket"
 fi
 
     touch "${LXC_ROOTFS}/etc/systemd/system/systemd-journald-audit.socket"
 fi
 

-cat <<EOF >> "${LXC_ROOTFS}${NETWORK_FILE}"
-auto eth0
-iface eth0 inet dhcp
-EOF
+echo "$INTERFACE_DETAILS" >> "${LXC_ROOTFS}${NETWORK_FILE}"

 
 # and update to the latest security
 chroot "${LXC_ROOTFS}" apt-get update
 
 # and update to the latest security
 chroot "${LXC_ROOTFS}" apt-get update


@@ -264,4 +434,20 @@ enable_initscripts
 
 rm -r "${LXC_PATH}/bin"
 
 
 rm -r "${LXC_PATH}/bin"
 

+cat <<EOF
+
+You have successfully created a new debian container, ${LXC_NAME} running ${DEBIAN_RELEASE}.
+
+You should start the new container, and use:
+
+  lxc-attach -n ${LXC_NAME} -- su -
+
+To create a user account / set the root password.
+
+Note, by default, it's likely only to be the console that can login as root, so that'd be:
+
+  lxc-console -n ${LXC_NAME} -t 0
+
+EOF
+

 exit 0
 exit 0