add ps to container image, add set -x to entrypoint script

Author: ammolitor

Dockerfile

@@ -1,6 +1,6 @@
 FROM amazonlinux:2.0.20210326.0
 
-RUN yum -y install mdadm nvme-cli bash e2fsprogs xfsprogs
+RUN yum -y install mdadm nvme-cli bash e2fsprogs xfsprogs procps
 COPY eks-nvme-ssd-provisioner.sh /usr/local/bin/
 
 ENTRYPOINT ["eks-nvme-ssd-provisioner.sh"]

eks-nvme-ssd-provisioner.sh

@@ -1,5 +1,6 @@
 #!/usr/bin/env bash
 set -Eeuo pipefail
+set -x
 
 mapfile -t SSD_NVME_DEVICE_LIST < <(nvme list | awk '/Amazon EC2 NVMe Instance Storage/{print $1}' || true)
 SSD_NVME_DEVICE_COUNT=${#SSD_NVME_DEVICE_LIST[@]}