Revert "Feature 11071: Modular OSM installation. Remove charms, juju and lxd"

This reverts commit a0f0d8ef4f2aa0dd227ecb651002490b66498bab.

Change-Id: I92394e4074dad4e457c107c58e4ebc17d507f8b2
Signed-off-by: garciadeblas <gerardo.garciadeblas@telefonica.com>
diff --git a/installers/install_lxd.sh b/installers/install_lxd.sh
new file mode 100755
index 0000000..60cf91e
--- /dev/null
+++ b/installers/install_lxd.sh
@@ -0,0 +1,130 @@
+#!/bin/bash
+#
+#   Licensed under the Apache License, Version 2.0 (the "License");
+#   you may not use this file except in compliance with the License.
+#   You may obtain a copy of the License at
+#
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+#   Unless required by applicable law or agreed to in writing, software
+#   distributed under the License is distributed on an "AS IS" BASIS,
+#   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#   See the License for the specific language governing permissions and
+#   limitations under the License.
+#
+
+set +eux
+
+function usage(){
+    [ -z "${DEBUG_INSTALL}" ] || DEBUG beginning of function
+    echo -e "usage: $0 [OPTIONS]"
+    echo -e "Install Juju for OSM"
+    echo -e "  OPTIONS"
+    echo -e "     -h / --help:    print this help"
+    echo -e "     -D <devops path> use local devops installation path"
+    echo -e "     -H <VCA host>   use specific juju host controller IP"
+    echo -e "     -S <VCA secret> use VCA/juju secret key"
+    echo -e "     -P <VCA pubkey> use VCA/juju public key file"
+    echo -e "     -l:             LXD cloud yaml file"
+    echo -e "     -L:             LXD credentials yaml file"
+    echo -e "     -K:             Specifies the name of the controller to use - The controller must be already bootstrapped"
+    echo -e "     --debug:        debug mode"
+    echo -e "     --cachelxdimages:  cache local lxd images, create cronjob for that cache (will make installation longer)"
+    echo -e "     --nojuju:       do not juju, assumes already installed"
+    [ -z "${DEBUG_INSTALL}" ] || DEBUG end of function
+}
+
+function install_lxd() {
+    [ -z "${DEBUG_INSTALL}" ] || DEBUG beginning of function
+    # Apply sysctl production values for optimal performance
+    sudo cp ${OSM_DEVOPS}/installers/lxd/60-lxd-production.conf /etc/sysctl.d/60-lxd-production.conf
+    sudo sysctl --system
+
+    # Install LXD snap
+    sudo apt-get remove --purge -y liblxc1 lxc-common lxcfs lxd lxd-client
+    snap info lxd | grep installed > /dev/null
+    if [ $? -eq 0 ]; then
+        sudo snap refresh lxd --channel $LXD_VERSION/stable
+    else
+        sudo snap install lxd --channel $LXD_VERSION/stable
+    fi
+
+    # Get default iface, IP and MTU
+    if [ -n "${OSM_DEFAULT_IF}" ]; then
+        OSM_DEFAULT_IF=$(ip route list|awk '$1=="default" {print $5; exit}')
+        [ -z "${OSM_DEFAULT_IF}" ] && OSM_DEFAULT_IF=$(route -n |awk '$1~/^0.0.0.0/ {print $8; exit}')
+        [ -z "${OSM_DEFAULT_IF}" ] && FATAL_TRACK lxd "Not possible to determine the interface with the default route 0.0.0.0"
+    fi
+    DEFAULT_MTU=$(ip addr show ${OSM_DEFAULT_IF} | perl -ne 'if (/mtu\s(\d+)/) {print $1;}')
+    OSM_DEFAULT_IP=`ip -o -4 a s ${OSM_DEFAULT_IF} |awk '{split($4,a,"/"); print a[1]; exit}'`
+    [ -z "$OSM_DEFAULT_IP" ] && FATAL_TRACK lxd "Not possible to determine the IP address of the interface with the default route"
+
+    # Configure LXD
+    sudo usermod -a -G lxd `whoami`
+    cat ${OSM_DEVOPS}/installers/lxd/lxd-preseed.conf | sed 's/^config: {}/config:\n  core.https_address: '$OSM_DEFAULT_IP':8443/' | sg lxd -c "lxd init --preseed"
+    sg lxd -c "lxd waitready"
+
+    # Configure LXD to work behind a proxy
+    if [ -n "${OSM_BEHIND_PROXY}" ] ; then
+        [ -n "${HTTP_PROXY}" ] && sg lxd -c "lxc config set core.proxy_http $HTTP_PROXY"
+        [ -n "${HTTPS_PROXY}" ] && sg lxd -c "lxc config set core.proxy_https $HTTPS_PROXY"
+        [ -n "${NO_PROXY}" ] && sg lxd -c "lxc config set core.proxy_ignore_hosts $NO_PROXY"
+    fi
+
+    [ -z "${DEBUG_INSTALL}" ] || DEBUG end of function
+}
+
+DEBUG_INSTALL=""
+LXD_VERSION=5.0
+OSM_DEVOPS=
+OSM_BEHIND_PROXY=""
+
+# main
+while getopts ":D:d:i:-: hP" o; do
+    case "${o}" in
+        i)
+            OSM_DEFAULT_IF="${OPTARG}"
+            ;;
+        d)
+            OSM_DOCKER_WORK_DIR="${OPTARG}"
+            ;;
+        D)
+            OSM_DEVOPS="${OPTARG}"
+            ;;
+        P)
+            OSM_BEHIND_PROXY="y"
+            ;;
+        -)
+            [ "${OPTARG}" == "help" ] && usage && exit 0
+            [ "${OPTARG}" == "debug" ] && DEBUG_INSTALL="y" && continue
+            echo -e "Invalid option: '--$OPTARG'\n" >&2
+            exit 1
+            ;;
+        :)
+            echo "Option -$OPTARG requires an argument" >&2
+            exit 1
+            ;;
+        \?)
+            echo -e "Invalid option: '-$OPTARG'\n" >&2
+            exit 1
+            ;;
+        h)
+            usage && exit 0
+            ;;
+        *)
+            exit 1
+            ;;
+    esac
+done
+
+source $OSM_DEVOPS/common/logging
+source $OSM_DEVOPS/common/track
+
+echo "DEBUG_INSTALL=$DEBUG_INSTALL"
+echo "OSM_BEHIND_PROXY=$OSM_BEHIND_PROXY"
+echo "OSM_DEFAULT_IF=$OSM_DEFAULT_IF"
+echo "OSM_DEVOPS=$OSM_DEVOPS"
+
+[ -z "$INSTALL_NOJUJU" ] && install_lxd
+track prereq lxd_install_ok
+