Have a single unix user used for all the thin-edge daemons (#1085)

* Closes #1031 single tedge user

Signed-off-by: Pradeep Kumar K J <pradeepkumar.kj@softwareag.com>

* Add script to upgrade tedge from 0.6

Signed-off-by: Pradeep Kumar K J <pradeepkumar.kj@softwareag.com>

2 files changed, 3 insertions, 47 deletions

diff --git a/configuration/debian/tedge_agent/postinst b/configuration/debian/tedge_agent/postinst
index 7430e3dc..4059b182 100644
--- a/configuration/debian/tedge_agent/postinst
+++ b/configuration/debian/tedge_agent/postinst
@@ -2,26 +2,6 @@
 
 set -e
 
-### Create a group "tedge-agent" if not created before
-if ! getent group tedge-agent >/dev/null; then
-    addgroup --quiet --system tedge-agent
-fi
-
-### Create a user "tedge-agent" if not created before
-# Create user tedge-agent with no home(--no-create-home), no login(--shell) and in group tedge-agent(--ingroup)
-if ! getent passwd tedge-agent >/dev/null; then
-    adduser --quiet --system --no-create-home --ingroup tedge-agent --shell /usr/sbin/nologin tedge-agent
-    adduser tedge-agent tedge
-fi
-
-### Create file in /etc/sudoers.d directory
-# tedge-agent needs to execute some of its operations as a system user therefore it needs an entry in /etc/sudoers.
-echo "%tedge-agent   ALL = (ALL) NOPASSWD: /etc/tedge/sm-plugins/[a-zA-Z0-9]*, /bin/sync, /sbin/init" >/etc/sudoers.d/tedge-agent
-
-if [ -f "/etc/sudoers.d/010_pi-nopasswd" ]; then
-    echo "%tedge-agent   ALL = (ALL) NOPASSWD: /etc/tedge/sm-plugins/[a-zA-Z0-9]*, /bin/sync, /sbin/init" >/etc/sudoers.d/tedge-agent-nopasswd
-fi
-
 # Reenable the services only if systemctl is available
 if command -v systemctl >/dev/null; then
     ### Enable the sm services if the device is connected to c8y cloud
@@ -33,6 +13,6 @@ if command -v systemctl >/dev/null; then
 fi
 
 # Initialize the agent
-runuser -u tedge-agent -- tedge_agent --init
+runuser -u tedge -- tedge_agent --init
 
 #DEBHELPER#
diff --git a/configuration/debian/tedge_agent/postrm b/configuration/debian/tedge_agent/postrm
index 115688e2..9b4c4681 100644
--- a/configuration/debian/tedge_agent/postrm
+++ b/configuration/debian/tedge_agent/postrm
@@ -1,23 +1,6 @@
 #!/bin/sh
 set -e
 
-remove_tedge_agent_user() {
-    if getent passwd tedge-agent >/dev/null; then
-        pkill -u tedge-agent || true
-        deluser --quiet --system tedge-agent
-    fi
-}
-
-remove_sudoers_file() {
-    if [ -f "/etc/sudoers.d/tedge-agent" ]; then
-        rm /etc/sudoers.d/tedge-agent
-    fi
-
-    if [ -f "/etc/sudoers.d/tedge-agent-nopasswd" ]; then
-        rm /etc/sudoers.d/tedge-agent-nopasswd
-    fi
-}
-
 purge_agent_directory() {
     if [ -d "/etc/tedge/.agent" ]; then
         rm -rf /etc/tedge/.agent
@@ -26,17 +9,10 @@ purge_agent_directory() {
 
 case "$1" in
     purge)
-        remove_tedge_agent_user
-        remove_sudoers_file
-        purge_agent_directory
-    ;;
-
-    remove)
-        remove_tedge_agent_user
-        remove_sudoers_file
+       purge_agent_directory
     ;;
 
-    upgrade|failed-upgrade|abort-install|abort-upgrade|disappear)
+    remove|upgrade|failed-upgrade|abort-install|abort-upgrade|disappear)
     ;;
 
     *)