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1.5.0 (#21)
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* Issue 19

* Use alias name in cluster output (more helpful hint)

* Replace jshon by jq

* Bump version
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@Napsty
Napsty authored Apr 13, 2021
1 parent 37580c9 commit 4e3c68a
Showing 1 changed file with 46 additions and 36 deletions.
82 changes: 46 additions & 36 deletions check_rancher2.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -40,6 +40,7 @@
# 20200523 1.2.3 Handle 403 forbidden error (#15) #
# 20200617 1.3.0 Added ignore parameter (-i) #
# 20210210 1.4.0 Checking specific workloads and pods inside a namespace #
# 20210413 1.5.0 Plugin now uses jq instead of jshon, fix cluster error check (#19) #
##########################################################################################
# (Pre-)Define some fixed variables
STATE_OK=0 # define the exit code if status is OK
Expand All @@ -48,10 +49,10 @@ STATE_CRITICAL=2 # define the exit code if status is Critical
STATE_UNKNOWN=3 # define the exit code if status is Unknown
export PATH=/usr/local/bin:/usr/bin:/bin:$PATH # Set path
proto=http # Protocol to use, default is http, can be overwritten with -S parameter
version=1.4.0
version=1.5.0

# Check for necessary commands
for cmd in jshon curl [
for cmd in jq curl [
do
if ! `which ${cmd} 1>/dev/null`
then
Expand Down Expand Up @@ -144,10 +145,10 @@ case ${type} in
info)
api_out_clusters=$(curl -s ${selfsigned} -u "${apiuser}:${apipass}" "${proto}://${apihost}/v3/clusters")
api_out_project=$(curl -s ${selfsigned} -u "${apiuser}:${apipass}" "${proto}://${apihost}/v3/project")
declare -a cluster_ids=( $(echo "$api_out_clusters" | jshon -e data -a -e id) )
declare -a cluster_names=( $(echo "$api_out_clusters" | jshon -e data -a -e name) )
declare -a project_ids=( $(echo "$api_out_project" | jshon -e data -a -e id) )
declare -a project_names=( $(echo "$api_out_project" | jshon -e data -a -e name) )
declare -a cluster_ids=( $(echo "$api_out_clusters" | jq -r '.data[].id') )
declare -a cluster_names=( $(echo "$api_out_clusters" | jq -r '.data[].name') )
declare -a project_ids=( $(echo "$api_out_project" | jq -r '.data[].id') )
declare -a project_names=( $(echo "$api_out_project" | jq -r '.data[].name') )

#echo ${cluster_ids[*]} # Enable for debugging
#echo ${cluster_names[*]} # Enable for debugging
Expand Down Expand Up @@ -179,26 +180,34 @@ if [[ -z $clustername ]]; then

# Check status of all clusters
api_out_clusters=$(curl -s ${selfsigned} -u "${apiuser}:${apipass}" "${proto}://${apihost}/v3/clusters")
declare -a cluster_ids=( $(echo "$api_out_clusters" | jshon -e data -a -e id) )
declare -a cluster_names=( $(echo "$api_out_clusters" | jshon -e data -a -e name) )
declare -a healthstatus=( $(echo "$api_out_clusters" | jshon -e data -a -e componentStatuses -a -e conditions -a -e status -u) )
declare -a component=( $(echo "$api_out_clusters" | jshon -e data -a -e componentStatuses -a -e name -u) )
declare -a cluster_ids=( $(echo "$api_out_clusters" | jq -r '.data[].id') )
declare -a cluster_names=( $(echo "$api_out_clusters" | jq -r '.data[].name') )

e=0
for cluster in ${cluster_ids[*]}
do
i=0
#echo $cluster # For Debug
clusteralias=$(echo "$api_out_clusters" | jq -r '.data[] | select(.id == "'${cluster}'")|.name')
declare -a component=( $(echo "$api_out_clusters" | jq -r '.data[] | select(.id == "'${cluster}'") | .componentStatuses[].name') )
declare -a healthstatus=( $(echo "$api_out_clusters" | jq -r '.data[] | select(.id == "'${cluster}'") | .componentStatuses[].conditions[].status') )
c=0
for status in ${healthstatus[*]}
do
if [[ ${status} != True ]]; then
componenterrors[$i]="${component[$i]} in cluster ${cluster} is not healthy -"
componenterrors[$e]="${component[$c]} in cluster ${clusteralias} is not healthy -"
clustererrors[$e]="${cluster}"
fi
#echo "${component[$c]} ${status}" # For Debug
let c++
let e++
done
let i++
done

clustererrorcount=$(echo ${clustererrors[*]} | tr ' ' '\n' | sort -u | tr '\n' ' ' | wc -w)

if [[ ${#componenterrors[*]} -gt 0 ]]
then
echo "CHECK_RANCHER2 CRITICAL - ${componenterrors[*]}|'clusters_total'=${#cluster_ids[*]};;;; 'clusters_errors'=${#componenterrors[*]};;;;"
echo "CHECK_RANCHER2 CRITICAL - ${componenterrors[*]}|'clusters_total'=${#cluster_ids[*]};;;; 'clusters_errors'=${clustererrorcount};;;;"
exit ${STATE_CRITICAL}
else
echo "CHECK_RANCHER2 OK - All clusters (${#cluster_ids[*]}) are healthy|'clusters_total'=${#cluster_ids[*]};;;; 'clusters_errors'=${#componenterrors[*]};;;;"
Expand All @@ -215,8 +224,9 @@ else
then echo "CHECK_RANCHER2 CRITICAL - Cluster $clustername not found. Hint: Use '-t info' to identify cluster and project names."; exit ${STATE_CRITICAL}
fi

declare -a component=( $(echo "$api_out_single_cluster" | jshon -e componentStatuses -a -e name -u) )
declare -a healthstatus=( $(echo "$api_out_single_cluster" | jshon -e componentStatuses -a -e conditions -a -e status -u) )
clusteralias=$(echo "$api_out_single_cluster" | jq -r '.name')
declare -a component=( $(echo "$api_out_single_cluster" | jq -r '.componentStatuses[].name') )
declare -a healthstatus=( $(echo "$api_out_single_cluster" | jq -r '.componentStatuses[].conditions[].status') )

i=0
for status in ${healthstatus[*]}
Expand All @@ -229,10 +239,10 @@ else

if [[ ${#componenterrors[*]} -gt 0 ]]
then
echo "CHECK_RANCHER2 CRITICAL - Cluster $clustername: ${componenterrors[*]}|'cluster_healthy'=0;;;; 'cluster_errors'=${#componenterrors[*]};;;;"
echo "CHECK_RANCHER2 CRITICAL - Cluster $clusteralias: ${componenterrors[*]}|'cluster_healthy'=0;;;; 'component_errors'=${#componenterrors[*]};;;;"
exit ${STATE_CRITICAL}
else
echo "CHECK_RANCHER2 OK - Cluster $clustername is healthy|'cluster_healthy'=1;;;; 'cluster_errors'=${#componenterrors[*]};;;;"
echo "CHECK_RANCHER2 OK - Cluster $clusteralias is healthy|'cluster_healthy'=1;;;; 'component_errors'=${#componenterrors[*]};;;;"
exit ${STATE_OK}
fi

Expand All @@ -245,9 +255,9 @@ if [[ -z $clustername ]]; then

# Check status of all nodes in all clusters
api_out_nodes=$(curl -s ${selfsigned} -u "${apiuser}:${apipass}" "${proto}://${apihost}/v3/nodes")
declare -a node_names=( $(echo "$api_out_nodes" | jshon -e data -a -e nodeName -u) )
declare -a node_status=( $(echo "$api_out_nodes" | jshon -e data -a -e state -u) )
declare -a node_cluster_member=( $(echo "$api_out_nodes" | jshon -e data -a -e clusterId -u) )
declare -a node_names=( $(echo "$api_out_nodes" | jq -r '.data[].nodeName') )
declare -a node_status=( $(echo "$api_out_nodes" | jq -r '.data[].state') )
declare -a node_cluster_member=( $(echo "$api_out_nodes" | jq -r '.data[].clusterId') )

i=0
for node in ${node_names[*]}
Expand Down Expand Up @@ -286,8 +296,8 @@ else
then echo "CHECK_RANCHER2 CRITICAL - Cluster $clustername not found. Hint: Use '-t info' to identify cluster and project names."; exit ${STATE_CRITICAL}
fi

declare -a node_names=( $(echo "$api_out_nodes" | jshon -e data -a -e nodeName -u) )
declare -a node_status=( $(echo "$api_out_nodes" | jshon -e data -a -e state -u) )
declare -a node_names=( $(echo "$api_out_nodes" | jq -r '.data[].nodeName') )
declare -a node_status=( $(echo "$api_out_nodes" | jq -r '.data[].state') )

i=0
for node in ${node_names[*]}
Expand Down Expand Up @@ -326,10 +336,10 @@ if [[ -z $projectname ]]; then

# Check status of all projects
api_out_project=$(curl -s ${selfsigned} -u "${apiuser}:${apipass}" "${proto}://${apihost}/v3/project")
declare -a project_ids=( $(echo "$api_out_project" | jshon -e data -a -e id -u) )
declare -a project_names=( $(echo "$api_out_project" | jshon -e data -a -e name -u) )
declare -a cluster_ids=( $(echo "$api_out_project" | jshon -e data -a -e clusterId) )
declare -a healthstatus=( $(echo "$api_out_project" | jshon -e data -a -e state -u) )
declare -a project_ids=( $(echo "$api_out_project" | jq -r '.data[].id') )
declare -a project_names=( $(echo "$api_out_project" | jq -r '.data[].name') )
declare -a cluster_ids=( $(echo "$api_out_project" | jq -r '.data[].clusterId') )
declare -a healthstatus=( $(echo "$api_out_project" | jq -r '.data[].state') )

for project in ${project_ids[*]}
do
Expand Down Expand Up @@ -362,7 +372,7 @@ else
then echo "CHECK_RANCHER2 CRITICAL - Project $projectname not found. Hint: Use '-t info' to identify cluster and project names."; exit ${STATE_CRITICAL}
fi

healthstatus=$(echo "$api_out_single_project" | jshon -e state -u)
healthstatus=$(echo "$api_out_single_project" | jq -r '.state')

if [[ ${healthstatus} != active ]]
then
Expand Down Expand Up @@ -392,9 +402,9 @@ if [[ -z $workloadname ]]; then
echo "CHECK_RANCHER2 CRITICAL - Cluster $clustername not found. Hint: Use '-t info' to identify cluster and project names."; exit ${STATE_CRITICAL}
fi

declare -a workload_names=( $(echo "$api_out_workloads" | jshon -e data -a -e name) )
declare -a healthstatus=( $(echo "$api_out_workloads" | jshon -e data -a -e state -u) )
declare -a pausedstatus=( $(echo "$api_out_workloads" | jshon -e data -a -s paused -u) )
declare -a workload_names=( $(echo "$api_out_workloads" | jq -r '.data[].name') )
declare -a healthstatus=( $(echo "$api_out_workloads" | jq -r '.data[].state') )
declare -a pausedstatus=( $(echo "$api_out_workloads" | jq -r '.data[].paused') )

# We rather WARN than silently return OK for zero workloads
if [[ ${#workload_names} -eq 0 ]]; then
Expand Down Expand Up @@ -457,13 +467,13 @@ else
fi

# Check if there are multiple workloads with the same name
workloadcount=$(echo "$api_out_single_workload" | jshon -e data -a -e id -u | wc -l)
workloadcount=$(echo "$api_out_single_workload" | jq -r '.data[].id' | wc -l)
if [[ $workloadcount -gt 1 ]]; then
echo "CHECK_RANCHER2 UNKNOWN - Identical workload names detected in multiple namespaces. To check a specific workload you must also define the namespace (-n)."
exit ${STATE_CRITICAL}
fi

healthstatus=$(echo "$api_out_single_workload" | jshon -e data -a -e state -u)
healthstatus=$(echo "$api_out_single_workload" | jq -r '.data[].state')

if [[ ${healthstatus} = updating ]]
then
Expand Down Expand Up @@ -499,8 +509,8 @@ if [[ -z $podname ]]; then
echo "CHECK_RANCHER2 CRITICAL - Cluster $clustername not found. Hint: Use '-t info' to identify cluster and project names."; exit ${STATE_CRITICAL}
fi

declare -a pod_names=( $(echo "$api_out_pods" | jshon -e data -a -e name) )
declare -a healthstatus=( $(echo "$api_out_pods" | jshon -e data -a -e state -u) )
declare -a pod_names=( $(echo "$api_out_pods" | jq -r '.data[].name') )
declare -a healthstatus=( $(echo "$api_out_pods" | jq -r '.data[].state') )

# We rather WARN than silently return OK for zero pods
if [[ ${#pod_names} -eq 0 ]]; then
Expand Down Expand Up @@ -544,7 +554,7 @@ else
then echo "CHECK_RANCHER2 CRITICAL - Pod $podname not found. Verify project (-p) and pod (-o) names."; exit ${STATE_CRITICAL}
fi

healthstatus=$(echo "$api_out_single_pod" | jshon -e state -u)
healthstatus=$(echo "$api_out_single_pod" | jq -r '.state')

if [[ ${healthstatus} != running ]]
then
Expand Down

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