feat(deploy): auto install snapd if needed (#62)

Co-authored-by: Addon Factory template <[email protected]>

Author: Ryan Faircloth

deploy/deploy.sh

@@ -22,29 +22,79 @@ realpath() {
   echo "$REALPATH"
 }
 
+install_snapd_on_centos7() {
+  yum -y install epel-release
+  yum -y install snapd
+  systemctl enable snapd
+  systemctl start snapd
+  sleep 10
+  ln -s /var/lib/snapd/snap /snap
+}
+
+install_snapd_on_centos8() {
+  dnf -y install epel-release
+  dnf -y install snapd
+  systemctl enable snapd
+  systemctl start snapd
+  sleep 10
+  ln -s /var/lib/snapd/snap /snap
+}
+
+install_dependencies() {
+  os_release=/etc/os-release
+  if [ ! -f "$os_release" ] ; then
+    echo "$os_release does not exist"
+    exit 4
+  fi
+
+  os_id=$(grep "^ID=" "$os_release" | sed -e "s/\"//g" | cut -d= -f2)
+  os_version=$(grep "^VERSION_ID=" "$os_release" | sed -e "s/\"//g" | cut -d= -f2)
+  if [ "$os_id" == "ubuntu" ] ; then
+    echo 'Snap install not required'
+  elif [ "$os_id" == "centos" ] && [[ "$os_version" = "7*" ]]; then
+    install_snapd_on_centos7
+  elif [ "$os_id" == "centos" ] && [[ "$os_version" = "8*" ]]; then
+    install_snapd_on_centos8
+  elif [ "$os_id" == "rhel" ] && [[ "$os_version" = "7*" ]]; then
+    install_snapd_on_centos7
+  elif [ "$os_id" == "rhel" ] && [[ "$os_version" = "8*" ]]; then
+    install_snapd_on_centos8
+  else
+    echo "Unsupported operating system: $os_id $os_version"
+    exit 4
+  fi  
+}
+
 if [ "$USER" != "root" ];
 then
     echo "must be root try sudo"
     exit
 fi
 
+
 K8S=${K8S:-mk8s}  
 if [ "$K8S" = "mk8s" ]; then
+  
+    
   if ! command -v snap &> /dev/null
   then
-      echo "snap could not be found"
-      exit
+      install_dependencies
   fi
+
   if ! command -v microk8s &> /dev/null
   then
-      snap install microk8s --classic
+      while ! snap install microk8s --classic  &> /dev/null; do
+          echo error installing mk8s using snap
+          sleep 1
+      done
+      source ~/.bashrc 
       microk8s status --wait-ready
   fi
   if command -v microk8s.helm3 &> /dev/null
     then
     microk8s enable helm3    
   fi
-  module_dns=$(sudo microk8s status -a dns)
+  module_dns=$(microk8s status -a dns)
   if [ "$module_dns" = "disabled" ];
   then
     while [ ! -n "$RESOLVERIP" ]
@@ -58,7 +108,7 @@ if [ "$K8S" = "mk8s" ]; then
   fi
 fi
 
-module_mlb=$(sudo microk8s status -a metallb)
+module_mlb=$(microk8s status -a metallb)
 if [ "$module_mlb" = "disabled" ];
 then
   while [ ! -n "$SHAREDIP" ]

docs/source/gettingstarted.rst

@@ -25,7 +25,6 @@ Requirements (Splunk Enterprise/Enterprise Cloud)
 4. Verify the token using `curl <https://docs.splunk.com/Documentation/Splunk/8.1.3/Data/FormateventsforHTTPEventCollector>`_ Note: The endpoint must use a publicly trusted certificate authority.
 5. The SHARED IP address to be used for SNMP Traps. Note Simple and POC deployments will use the same IP as the host server if HA deployment will be used the IP must be in addition to the managment inteface of each cluster memember.
 6. Obtain the ip address of an internal DNS server able to resolve the Splunk Endpoint
-7. The "snap" command for your operating system
 
 
 Requirements (Splunk Infrastructure Monitoring)
@@ -58,6 +57,10 @@ Deploy SC4SNMP Interactive
 Deploy SC4SNMP non-interactive
 ===================================================
 
+This step will install SC4SNMP and its depdenencies including snapd, micrk8s and sck.
+This script has been tested with Centos 7, Centos 8, Redhat 8, and Ubuntu 20.04
+
+
 .. code-block:: bash
 
     sudo \