Naming

src/scripts/cluster.sh

@@ -1,13 +1,13 @@
 #!/bin/bash
-globalprefix="hpdevkit"
+global_prefix="hpdevkit"
 imgname="evernodedev/hotpocket:latest-ubt.20.04-njs.16"
 volmount="/devkitvol"
 
 command=$1
 cluster="${HP_CLUSTER:-default}"
-volume="${globalprefix}_${cluster}_vol"
-network="${globalprefix}_${cluster}_net"
-containerprefix="${globalprefix}_${cluster}_con"
+volume="${global_prefix}_${cluster}_vol"
+network="${global_prefix}_${cluster}_net"
+container_prefix="${global_prefix}_${cluster}_con"
 
 echo "Hot Pocket development toolkit"
 
@@ -21,7 +21,7 @@ fi
 
 [ -z $cluster ] && echo "Cluster name not specified." && exit 1
 
-function validatenodenumarg {
+function validate_node_num_arg {
     ! [ "$1" -eq "$1" ] 2> /dev/null && echo "Arg must be a number." && return 1
     [ $1 -le 0 ] && echo "Arg must be 1 or higher." && return 1
     return 0
@@ -36,20 +36,20 @@ function exists {
     fi
 }
 
-function clusterexists {
-    if exists "volume" $volume || exists "network" $network || exists "container" $containerprefix ; then
+function cluster_exists {
+    if exists "volume" $volume || exists "network" $network || exists "container" $container_prefix ; then
         return 0
     else
         return 1
     fi
 }
 
-function getcontainercount {
-    docker ps -a | grep $containerprefix | wc -l
+function get_container_count {
+    docker ps -a | grep $container_prefix | wc -l
 }
 
-function createcluster {
-    clusterexists && echo "Cluster '$cluster' already exists." && exit 1
+function create_cluster {
+    cluster_exists && echo "Cluster '$cluster' already exists." && exit 1
     docker volume create $volume
     docker network create $network
 
@@ -59,58 +59,58 @@ function createcluster {
         docker run --rm --mount type=volume,src=$volume,dst=$volmount --rm $imgname new $volmount/node$i
 
         # Create container for hot pocket instance.
-        local containername="${containerprefix}_$i"
-        docker container create --name $containername --privileged --mount type=volume,src=$volume,dst=$volmount $imgname run $volmount/node$i
+        local container_name="${container_prefix}_$i"
+        docker container create --name $container_name --privileged --mount type=volume,src=$volume,dst=$volmount $imgname run $volmount/node$i
     done
 }
 
-function destroycluster {
-    ! clusterexists && echo "Cluster '$cluster' does not exist." && exit 1
+function destroy_cluster {
+    ! cluster_exists && echo "Cluster '$cluster' does not exist." && exit 1
 
     echo "action: stop"
-    changeclusterstatus "stop"
+    change_cluster_status "stop"
 
     # Delete top-most matching container N times.
     # (This is just in case there are gaps in container numbering due to any tampering by user)
     echo "action: delete"
-    local containercount=$(getcontainercount)
-    for ((i=1; i<=$containercount; i++)); 
+    local container_count=$(get_container_count)
+    for ((i=1; i<=$container_count; i++)); 
     do
-        local containername="$(docker ps -a --format "{{.Names}}" | grep $containerprefix | head -1)"
-        docker container rm $containername
+        local container_name="$(docker ps -a --format "{{.Names}}" | grep $container_prefix | head -1)"
+        docker container rm $container_name
     done
 
     exists "volume" $volume && docker volume rm $volume
     exists "network" $network && docker network rm $network
 }
 
-function changeclusterstatus {
-    ! clusterexists && echo "Cluster '$cluster' does not exist." && exit 1
+function change_cluster_status {
+    ! cluster_exists && echo "Cluster '$cluster' does not exist." && exit 1
 
-    local containercount=$(getcontainercount)
-    for ((i=1; i<=$containercount; i++)); 
+    local container_count=$(get_container_count)
+    for ((i=1; i<=$container_count; i++)); 
     do
-        local containername="${containerprefix}_$i"
-        docker $1 $containername
+        local container_name="${container_prefix}_$i"
+        docker $1 $container_name
     done
 }
 
-function attachlogs {
-    ! clusterexists && echo "Cluster '$cluster' does not exist." && exit 1
-    local containername="${containerprefix}_$1"
-    docker logs -f --tail=5 $containername
+function attach_logs {
+    ! cluster_exists && echo "Cluster '$cluster' does not exist." && exit 1
+    local container_name="${container_prefix}_$1"
+    docker logs -f --tail=5 $container_name
 }
 
 if [ $command = "create" ]; then
-    ! validatenodenumarg $2 && echo "Usage: create <node count>" && exit 1
-    createcluster $2
+    ! validate_node_num_arg $2 && echo "Usage: create <node count>" && exit 1
+    create_cluster $2
 elif [ $command = "destroy" ]; then
-    destroycluster
+    destroy_cluster
 elif [ $command = "start" ]; then
-    changeclusterstatus start
+    change_cluster_status start
 elif [ $command = "stop" ]; then
-    changeclusterstatus stop
+    change_cluster_status stop
 elif [ $command = "logs" ]; then
-    ! validatenodenumarg $2 && echo "Usage: logs <node id>" && exit 1
-    attachlogs $2
+    ! validate_node_num_arg $2 && echo "Usage: logs <node id>" && exit 1
+    attach_logs $2
 fi