DLPX-89763 DLPX-86523 delphix-platform changes

PR URL: https://www.github.com/delphix/delphix-platform/pull/521

Author: justsanjeev

debian/postinst

@@ -1,6 +1,6 @@
 #!/bin/bash -eux
 #
-# Copyright 2018, 2021 Delphix
+# Copyright 2018, 2025 Delphix
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -55,6 +55,7 @@ configure)
 	systemctl enable auditd.service
 	systemctl enable delphix.target
 	systemctl enable delphix-platform.service
+	systemctl enable delphix-legacy-link.service
 	systemctl enable delphix-rpool-upgrade.service
 	systemctl enable systemd-networkd.service
 	systemctl enable iscsi-name-init.service

debian/preinst

@@ -0,0 +1,50 @@
+#!/bin/bash -eux
+#
+# Copyright 2025 Delphix
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+case $1 in
+upgrade)
+	# Home directories were previously mounted under /export/home,
+	# and this was changed to /home. This is the upgrade logic that
+	# updates the /etc/fstab file to reflect that change.
+	# Home directories will be mounted in both /export/home and /home
+	# until the system is rebooted to ensure that running processes
+	# referencing the old /export/home paths continue to function
+	# while also enabling new logins under /home to work.
+	fs_tab=/etc/fstab
+	auto_master=/etc/auto.master
+
+	if grep -q "\/export\/home" "$fs_tab"; then
+		sed -i 's|/export/home|/home|g' "$fs_tab"
+		mount /home
+	fi
+
+	if [[ -e $auto_master ]]; then
+		if grep -q "\/home\s+auto_home\s+-nobrowse" "$auto_master"; then
+			sed -i 's|/home   auto_home    -nobrowse|#/home   auto_home    -nobrowse|g' "$auto_master"
+			systemctl restart autofs
+		fi
+	fi
+
+	passwd_file=/etc/passwd
+	if grep -q "\/export\/home" "$passwd_file"; then
+		sed -i 's/\/export\/home/\/home/g' /etc/passwd
+	fi
+
+	;;
+esac
+
+exit 0

files/common/lib/systemd/system/delphix-legacy-link.service

@@ -0,0 +1,43 @@
+#
+# Copyright 2025 Delphix
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+[Unit]
+Description=Create /export/home symlink to /home after platform setup
+After=delphix-platform.service
+Requires=delphix-platform.service
+
+[Service]
+Type=oneshot
+ExecStart=/bin/sh -c '\
+  echo "Ensuring /export/home is a symlink to /home..."; \
+  if mountpoint -q /export/home; then \
+    echo "/export/home is a mountpoint, unmounting..."; \
+    umount /export/home || { echo "Failed to unmount /export/home"; exit 1; }; \
+  fi; \
+  if [ -e /export/home ] && [ ! -L /export/home ]; then \
+    echo "Removing existing /export/home directory..."; \
+    rm -rf /export/home; \
+  fi; \
+  if [ ! -d /export ]; then \
+    mkdir /export; \
+  fi; \
+  if [ -d /export ] && [ ! -L /export/home ]; then \
+    echo "Creating symlink: /export/home -> /home"; \
+    ln -s /home /export/home; \
+  fi;'
+
+[Install]
+WantedBy=delphix.target

files/common/var/lib/delphix-platform/ansible/10-delphix-platform/roles/delphix-platform/tasks/main.yml

@@ -22,7 +22,7 @@
 # it below; otherwise that task will fail.
 #
 - file:
-    path: /export/home
+    path: /home
     state: directory
     mode: 0755
 
@@ -35,7 +35,7 @@
     shell: /bin/bash
     create_home: yes
     comment: Delphix User
-    home: /export/home/delphix
+    home: /home/delphix
 
 #
 # In order for this locale to be used (e.g. by virtualization) we need
@@ -689,7 +689,7 @@
 
 - name: Source bash completion
   blockinfile:
-    dest: "/export/home/delphix/.bashrc"
+    dest: "/home/delphix/.bashrc"
     block: |
       . /etc/bash_completion.d/systemctl
       . /etc/bash_completion.d/zfs