issue 75 - add optional swap partition for agents

README.md

@@ -121,6 +121,7 @@ For each agent, you will need to provide:
 - the agent node's hardware address
 - its IPv4 address
 - a UUID for a partition containing an ext4 filesystem for `K3S` persistent local storage
+- an optional UUID for a swap partition
 - its PXE client ID
 - any extra args for K3s that the agent might need (optional)
 

agents/README.md

@@ -10,6 +10,7 @@ Example agent description file:
 AGENT_ETHERNET=b8:27:eb:81:1a:52
 AGENT_IP=192.168.64.65
 AGENT_RANCHER_PART_UUID=d5f9e6c2-493c-48da-baf2-0c63dd7a36b1
+AGENT_SWAP_PART_UUID=e5f9e6c2-493c-48da-baf2-0c63dd7a36b2
 AGENT_PXE_ID=c6811a52
 AGENT_K3S_ARGS="--node-label 'smarter-device-manager=enabled'"
 ```

scripts/configure-agent.sh

@@ -108,6 +108,12 @@ ${LC_INTERNAL_IP}:${MOUNT_DIR}/${AGENT} / nfs defaults 0 0
 UUID="${AGENT_RANCHER_PART_UUID}" ${RANCHERSTORAGEPATH} ext4 defaults 0 0
 EOF
 
+if [ ! -z ${AGENT_SWAP_PART_UUID} ]; then
+  cat - >> ${AGENT_ROOT}/etc/fstab << EOF
+UUID="${AGENT_SWAP_PART_UUID}" none swap sw 0 0
+EOF
+fi
+
 ### CREATE AGENT DNSMASQ ENTRY
 cat - > ${ROOT_MNT}/etc/dnsmasq.d/20-scooby-agent-${AGENT} << EOF
 dhcp-host=net:${AGENT},${AGENT_ETHERNET},${AGENT},${AGENT_IP},24h
@@ -148,6 +154,7 @@ configureAgents() {
     FSID=1
     for FILE in $(cd ${AGENT_DIR}; ls *.agent)
     do
+      AGENT_SWAP_PART_UUID=""
       . ${AGENT_DIR}/${FILE}
       configureAgent $(printf "${FILE}" | grep -oE "^[a-z0-9\-]+")
       FSID=$((FSID+1))