omg-extract-ovn-k-logs.sh

#!/bin/bash                                                                                                                                                                                                                                   
# output all ovn-kubernetes components logs to file from a must-gather output                                                                                                                                                                                         
# set --location flag to must-gather output location                                                                                                                                                                                          
set -eo pipefail                                                                                                                                                                                                                              
location=""                                                                                                                                                                                                                                   
                                                                                                                                                                                                                                              
while true; do                                                                                                                                                                                                                                
  case "$1" in                                                                                                                                                                                                                                
    -l|--location)                                                                                                                                                                                                                            
      location="$2"                                                                                                                                                                                                                           
      break;;                                                                                                                                                                                                                                 
    --)                                                                                                                                                                                                                                       
      break;;                                                                                                                                                                                                                                 
    *)                                                                                                                                                                                                                                        
      printf "unknown option %s\nset --location flag to path of must-gather output\n" "$1"                                                                                                                                                    
      exit 1;                                                                                                                                                                                                                                 
  esac                                                                                                                                                                                                                                        
done                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                              
if ! command -v omg &>/dev/null; then                                                                                                                                                                                                         
  echo "omg not found. installing..."                                                                                                                                                                                                         
  pip3 install o-must-gather --user                                                                                                                                                                                                           
fi                                                                                                                                                                                                                                            
                                                                                                                                                                                                                                              
omg use "${location}"                                                                                                                                                                                                                         
                                                                                                                                                                                                                                              
WORK_DIR="$(mktemp -d -t omg-ovn-k-XXXXX)"                                                                                                                                                                                                    
echo "work directory $WORK_DIR"                                                                                                                                                                                                               
                                                                                                                                                                                                                                              
omg get pods -n openshift-ovn-kubernetes | awk '{print $1}' | while read line ; do                                                                                                                                                            
  if [[ "$line" =~ "master" ]]; then                                                                                                                                                                                                          
    for component in "ovnkube-master" "northd" "kube-rbac-proxy" "nbdb" "sbdb" "ovn-dbchecker"; do                                                                                                                                            
      omg logs "$line" -n openshift-ovn-kubernetes -c $component > "$WORK_DIR/$line-$component.log"                                                                                                                                  
    done                                                                                                                                                                                                                                      
    continue                                                                                                                                                                                                                                  
  fi                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                              
  if [[ "$line" =~ "node" ]]; then                                                                                                                                                                                                            
    for component in "ovn-controller" "ovn-acl-logging" "kube-rbac-proxy" "ovnkube-node"; do                                                                                                                                                  
      omg logs "$line" -n openshift-ovn-kubernetes -c $component > "$WORK_DIR/$line-$component.log"                                                                                                                                    
    done                                                                                                                                                                                                                                      
  fi                                                                                                                                                                                                                                          
done                                                                                                                                                                                                                                          
                                                                                                                                                                                                                                              
echo "done"