debug-etcd-operator.sh

debug-etcd-operator.sh

#!/bin/bash
set -euo pipefail

function log {
  local msg="$1"
  echo -e "$\033[32m$(date +'%Y-%m-%d %H:%M:%S') $1 $\033[0;39m"
}

export KUBECONFIG=$(find $HOME/clusters -name kubeconfig | fzf)

trap 'jobs -p | xargs kill || true; exit 0' INT TERM EXIT

log "Turning off CVO and etcd-operator"
oc scale --replicas 0 -n openshift-cluster-version deployments/cluster-version-operator || true
oc scale --replicas 0 -n openshift-etcd-operator deployments/etcd-operator || true
oc delete -n openshift-etcd-operator configmaps/openshift-cluster-etcd-operator-lock || true

log "Waiting for debug container to be ready"
(oc debug --namespace openshift-etcd-operator --container etcd-operator deployments/etcd-operator -- /usr/bin/sleep 1d) &
while true; do
  oc wait --for=condition=Ready --namespace openshift-etcd-operator pod/etcd-operator-debug && break
done
(oc port-forward --namespace openshift-etcd-operator pod/etcd-operator-debug 12500) &

if [ ! -f "/tmp/dlv-linux" ]; then
  log "Building delve"
  docker run --name dlv golang:1.13.4 go get github.com/go-delve/delve/cmd/dlv
  docker cp dlv:/go/bin/dlv /tmp/dlv-linux
  docker rm dlv
fi

log "Copying delve to the operator container"
oc cp /tmp/dlv-linux openshift-etcd-operator/etcd-operator-debug:/usr/bin/dlv --container operator

if [ ! -f "/tmp/etcd-operator-linux-amd64" ]; then
  log "Building operator linux binary"
  GO_GCFLAGS='-gcflags=all="-N -l"' GOFLAGS=-mod=vendor GOOS=linux GOARCH=amd64 go build -o /tmp/etcd-operator-linux-amd64 ./cmd/cluster-etcd-operator
fi

log "Copying operator binary to operator container"
oc cp /tmp/etcd-operator-linux-amd64 openshift-etcd-operator/etcd-operator-debug:/usr/bin/cluster-etcd-operator-debug --container operator

log "Starting operator process"
oc exec --namespace openshift-etcd-operator etcd-operator-debug -c etcd-operator -- dlv --listen=:12500 --headless=true --api-version=2 --accept-multiclient exec /usr/bin/cluster-etcd-operator-debug -- operator --config=/var/run/configmaps/config/config.yaml -v=2 2>&1 | tee /tmp/etcd-operator.log