From 17a3c688caa23b299e6bfabad9f464f663e6b740 Mon Sep 17 00:00:00 2001
From: Tiago Castro <tiagolobocastro@gmail.com>
Date: Wed, 11 Sep 2024 17:22:55 +0100
Subject: [PATCH] fix(kind/zfs): use zfsutils from the host

Kind sets up multiple containers on the same host system.
We install zfs utils in the host, so we must somehow access them
on each worker node container.
Here we add the host fs and a simple chroot for the host zfs utils

Signed-off-by: Tiago Castro <tiagolobocastro@gmail.com>
---
 scripts/k8s/deployer.sh | 37 ++++++++++++++++++++++++++++---------
 1 file changed, 28 insertions(+), 9 deletions(-)

diff --git a/scripts/k8s/deployer.sh b/scripts/k8s/deployer.sh
index 51c84cf0..ccf1389d 100755
--- a/scripts/k8s/deployer.sh
+++ b/scripts/k8s/deployer.sh
@@ -3,8 +3,9 @@
 set -e
 
 SCRIPT_DIR="$(dirname "$0")"
-TMP_KIND="/tmp/kind/mayastor"
+TMP_KIND="/tmp/kind/openebs-e2e"
 TMP_KIND_CONFIG="$TMP_KIND/config.yaml"
+TMP_KIND_ZFS="$TMP_KIND/zfs"
 WORKERS=2
 DELAY="false"
 CORES=1
@@ -128,7 +129,7 @@ if [ "$COMMAND" = "stop" ]; then
 fi
 
 # Install prerequisites
-if ["$SETUP_MAYASTOR" = "true" ]; then
+if [ "$SETUP_MAYASTOR" = "true" ]; then
   "$SCRIPT_DIR"/setup-io-prereq.sh --hugepages "$HUGE_PAGES" --mayastor $DRY_RUN
 fi
 
@@ -176,19 +177,37 @@ for node_index in $(seq 1 $WORKERS); do
     - hostPath: $TMP_KIND/$node
       containerPath: /var/local/mayastor
       propagation: HostToContainer
+    - hostPath: /
+      containerPath: /host
+      propagation: HostToContainer
+EOF
+  if [ "$SETUP_ZFS" = "true" ]; then
+    # Should already be installed by prereq script
+    ZFS=$(realpath $(which zfs))
+    cat <<EOF >>$TMP_KIND_ZFS
+    #/bin/sh
+    chroot /host $ZFS "\$@"
+EOF
+    chmod +x $TMP_KIND_ZFS
+    cat <<EOF >> "$TMP_KIND_CONFIG"
+    - hostPath: $TMP_KIND_ZFS
+      containerPath: /sbin/zfs
+      propagation: HostToContainer
 EOF
-  if [ -n "$SETUP_MAYASTOR" ]; then
+  fi
+
+  if [ "$SETUP_MAYASTOR" = "true" ]; then
     cat <<EOF >> "$TMP_KIND_CONFIG"
   labels:
     openebs.io/engine: mayastor
 EOF
+    mkdir -p $host_path/io-engine
+    if [ -n "$POOL_SIZE" ]; then
+      $FALLOCATE -l $POOL_SIZE $host_path/io-engine/disk.io
+    fi
+    corelist=$(seq -s, $((start_core+((node_index-1)*CORES))) 1 $((start_core-1+((node_index)*CORES))))
+    printf "eal_opts:\n  core_list: $corelist\n  developer_delay: $DELAY\n" >$host_path/io-engine/config.yaml
   fi
-  mkdir -p $host_path/io-engine
-  if [ -n "$POOL_SIZE" ]; then
-    $FALLOCATE -l $POOL_SIZE $host_path/io-engine/disk.io
-  fi
-  corelist=$(seq -s, $((start_core+((node_index-1)*CORES))) 1 $((start_core-1+((node_index)*CORES))))
-  printf "eal_opts:\n  core_list: $corelist\n  developer_delay: $DELAY\n" >$host_path/io-engine/config.yaml
 done
 
 if [ -n "$DRY_RUN" ]; then