This code will connect to every GKE cluster and list all the pods that is mount volume as HostPath, for more information about hostPath see, Kubernetes HostPath
First, make sure you have the GOOGLE_APPLICATION_CREDENTIALS environment variable set as per the google docs.
It will require one argument which is project, to connect to the specify GKE project to list the pods. By default the zone is set to - which means all GKE zones.
You can choose to build the binary by running
go build -o list-pods
and run it as
./list-pods -project=<PROJECTNAME>
or without building the binary
go run main.go -project=<PROJECTNAME>
You will have an output like the following:
CLUSTER NAME POD NAME NAMESPACE VOLUME TYPE VOLUMES PATH
maritests-gke test-76665f4d68-f4gcz default Directory /
maritests-gke event-exporter-gke-5479fd58c8-p84kc kube-system /etc/ssl/certs
maritests-gke fluentbit-gke-4pcm8 kube-system /var/run/google-fluentbit/pos-files
maritests-gke fluentbit-gke-4pcm8 kube-system /var/log
maritests-gke fluentbit-gke-4pcm8 kube-system /var/lib/kubelet/pods
maritests-gke fluentbit-gke-4pcm8 kube-system /var/lib/docker/containers
maritests-gke fluentbit-gke-szwzv kube-system /var/run/google-fluentbit/pos-files
maritests-gke fluentbit-gke-szwzv kube-system /var/log
maritests-gke fluentbit-gke-szwzv kube-system /var/lib/kubelet/pods
maritests-gke fluentbit-gke-szwzv kube-system /var/lib/docker/containers
maritests-gke fluentbit-gke-tr879 kube-system /var/run/google-fluentbit/pos-files
maritests-gke fluentbit-gke-tr879 kube-system /var/log
maritests-gke fluentbit-gke-tr879 kube-system /var/lib/kubelet/pods
maritests-gke fluentbit-gke-tr879 kube-system /var/lib/docker/containers
maritests-gke gke-metrics-agent-94mhr kube-system Directory /etc/ssl/certs
maritests-gke gke-metrics-agent-sgg9w kube-system Directory /etc/ssl/certs
maritests-gke gke-metrics-agent-zpmwm kube-system Directory /etc/ssl/certs
maritests-gke kube-proxy-gke-maritests-gke-default-pool-8608c62b-xfzh kube-system /usr/share/ca-certificates
maritests-gke kube-proxy-gke-maritests-gke-default-pool-8608c62b-xfzh kube-system /etc/ssl/certs
maritests-gke kube-proxy-gke-maritests-gke-default-pool-8608c62b-xfzh kube-system FileOrCreate /var/lib/kube-proxy/kubeconfig
maritests-gke kube-proxy-gke-maritests-gke-default-pool-8608c62b-xfzh kube-system /var/log
maritests-gke kube-proxy-gke-maritests-gke-default-pool-8608c62b-xfzh kube-system FileOrCreate /run/xtables.lock
maritests-gke kube-proxy-gke-maritests-gke-default-pool-8608c62b-xfzh kube-system /lib/modules
maritests-gke kube-proxy-gke-maritests-gke-default-pool-af2b35ac-wr63 kube-system /usr/share/ca-certificates
maritests-gke kube-proxy-gke-maritests-gke-default-pool-af2b35ac-wr63 kube-system /etc/ssl/certs
maritests-gke kube-proxy-gke-maritests-gke-default-pool-af2b35ac-wr63 kube-system FileOrCreate /var/lib/kube-proxy/kubeconfig
maritests-gke kube-proxy-gke-maritests-gke-default-pool-af2b35ac-wr63 kube-system /var/log
maritests-gke kube-proxy-gke-maritests-gke-default-pool-af2b35ac-wr63 kube-system FileOrCreate /run/xtables.lock
maritests-gke kube-proxy-gke-maritests-gke-default-pool-af2b35ac-wr63 kube-system /lib/modules
maritests-gke kube-proxy-gke-maritests-gke-default-pool-cebcda79-lpz3 kube-system /usr/share/ca-certificates
maritests-gke kube-proxy-gke-maritests-gke-default-pool-cebcda79-lpz3 kube-system /etc/ssl/certs
maritests-gke kube-proxy-gke-maritests-gke-default-pool-cebcda79-lpz3 kube-system FileOrCreate /var/lib/kube-proxy/kubeconfig
maritests-gke kube-proxy-gke-maritests-gke-default-pool-cebcda79-lpz3 kube-system /var/log
maritests-gke kube-proxy-gke-maritests-gke-default-pool-cebcda79-lpz3 kube-system FileOrCreate /run/xtables.lock
maritests-gke kube-proxy-gke-maritests-gke-default-pool-cebcda79-lpz3 kube-system /lib/modules
maritests-gke metricbeat-bw7gl kube-system /proc
maritests-gke metricbeat-bw7gl kube-system /sys/fs/cgroup
maritests-gke metricbeat-bw7gl kube-system DirectoryOrCreate /var/lib/metricbeat-data
maritests-gke metricbeat-mjr9c kube-system /proc
maritests-gke metricbeat-mjr9c kube-system /sys/fs/cgroup
maritests-gke metricbeat-mjr9c kube-system DirectoryOrCreate /var/lib/metricbeat-data
maritests-gke metricbeat-tlz88 kube-system /proc
maritests-gke metricbeat-tlz88 kube-system /sys/fs/cgroup
maritests-gke metricbeat-tlz88 kube-system DirectoryOrCreate /var/lib/metricbeat-data
maritests-gke pdcsi-node-bpjhj kube-system Directory /var/lib/kubelet/plugins_registry/
maritests-gke pdcsi-node-bpjhj kube-system Directory /var/lib/kubelet
maritests-gke pdcsi-node-bpjhj kube-system DirectoryOrCreate /var/lib/kubelet/plugins/pd.csi.storage.gke.io/
maritests-gke pdcsi-node-bpjhj kube-system Directory /dev
maritests-gke pdcsi-node-bpjhj kube-system Directory /etc/udev
maritests-gke pdcsi-node-bpjhj kube-system Directory /lib/udev
maritests-gke pdcsi-node-bpjhj kube-system Directory /run/udev
maritests-gke pdcsi-node-bpjhj kube-system Directory /sys
maritests-gke pdcsi-node-c4qkw kube-system Directory /var/lib/kubelet/plugins_registry/
maritests-gke pdcsi-node-c4qkw kube-system Directory /var/lib/kubelet
maritests-gke pdcsi-node-c4qkw kube-system DirectoryOrCreate /var/lib/kubelet/plugins/pd.csi.storage.gke.io/
maritests-gke pdcsi-node-c4qkw kube-system Directory /dev
maritests-gke pdcsi-node-c4qkw kube-system Directory /etc/udev
maritests-gke pdcsi-node-c4qkw kube-system Directory /lib/udev
maritests-gke pdcsi-node-c4qkw kube-system Directory /run/udev
maritests-gke pdcsi-node-c4qkw kube-system Directory /sys
maritests-gke pdcsi-node-qcmz4 kube-system Directory /var/lib/kubelet/plugins_registry/
maritests-gke pdcsi-node-qcmz4 kube-system Directory /var/lib/kubelet
maritests-gke pdcsi-node-qcmz4 kube-system DirectoryOrCreate /var/lib/kubelet/plugins/pd.csi.storage.gke.io/
maritests-gke pdcsi-node-qcmz4 kube-system Directory /dev
maritests-gke pdcsi-node-qcmz4 kube-system Directory /etc/udev
maritests-gke pdcsi-node-qcmz4 kube-system Directory /lib/udev
maritests-gke pdcsi-node-qcmz4 kube-system Directory /run/udev
maritests-gke pdcsi-node-qcmz4 kube-system Directory /sys
If the VOLUME TYPE column is empty, it means the manifest contains an empty type. The VOLUME PATH represents the host path that has being mounted inside the pod. The pods that are NOT using hostPath won't be in the list.