Merge pull request #104 from fledge-iot/FOGL-9841

FOGL-9841 container specific handling in Debian scripts

Author: ashish-jabble

packages/Debian/common/DEBIAN/postinst

@@ -21,7 +21,7 @@
 ## @postinst DEBIAN/postinst
 ## This script is used to execute post installation tasks.
 ##
-## Author: Ivan Zoratti, Massimiliano Pinto
+## Author: Ivan Zoratti, Massimiliano Pinto, Ashish Jabble
 ##
 ##--------------------------------------------------------------------
 
@@ -32,6 +32,14 @@ SSL_NAME="fledge"
 SSL_DAYS="365"
 AUTH_NAME="ca"
 
+is_running_in_container() {
+    grep -qaE '/docker|/lxc|/kubepods|containerd' /proc/1/cgroup 2>/dev/null && return 0
+    grep -qa 'container=' /proc/1/environ 2>/dev/null && return 0
+    [ -f /.dockerenv ] && return 0
+    [ -f /run/.containerenv ] && return 0
+    return 1
+}
+
 link_update_task() {
     echo "Changing setuid of update_task.apt"
     chmod ugo+s /usr/local/fledge/bin/update_task.apt
@@ -168,7 +176,13 @@ echo "Copying sudoers file"
 copy_fledge_sudoer_file
 echo "Setting setuid bit of cmdutil"
 setuid_cmdutil
-echo "Enabling Fledge service"
-enable_fledge_service
-echo "Starting Fledge service"
-start_fledge_service
+
+if is_running_in_container; then
+    echo "INFO: Detected container environment — skipping service enable"
+    /usr/local/fledge/bin/fledge start
+else
+    echo "Enabling Fledge service"
+    enable_fledge_service
+    echo "Starting Fledge service"
+    start_fledge_service
+fi

packages/Debian/common/DEBIAN/prerm

@@ -21,14 +21,22 @@
 ## @prerm DEBIAN/prerm
 ## This script is used to execute before the removal of files associated with the package.
 ##
-## Author: Ivan Zoratti, Ashwin Gopalakrishnan
+## Author: Ivan Zoratti, Ashwin Gopalakrishnan, Ashish Jabble
 ##
 ##----------------------------------------------------------------------------------------
 
 set -e
 
 PKG_NAME="fledge"
 
+is_running_in_container() {
+    grep -qaE '/docker|/lxc|/kubepods|containerd' /proc/1/cgroup 2>/dev/null && return 0
+    grep -qa 'container=' /proc/1/environ 2>/dev/null && return 0
+    [ -f /.dockerenv ] && return 0
+    [ -f /run/.containerenv ] && return 0
+    return 1
+}
+
 get_fledge_script () {
     fledge_script=$(dpkg -L $PKG_NAME | grep 'fledge/bin/fledge$')
     echo $fledge_script
@@ -73,15 +81,19 @@ IS_FLEDGE_RUNNING=$(is_fledge_running)
 if [ "$IS_FLEDGE_RUNNING" -eq "1" ]
 then
     echo "Fledge is currently running."
-    echo "Stop Fledge service."
-    stop_fledge_service
+    if ! is_running_in_container; then
+        echo "Stop Fledge service."
+        stop_fledge_service
+    fi
     echo "Kill Fledge."
     kill_fledge
 fi
 
-echo "Disable Fledge service."
-disable_fledge_service
-echo "Remove Fledge service script"
-remove_fledge_service_file
-echo "Reset systemctl"
-reset_systemctl
+if ! is_running_in_container; then
+    echo "Disable Fledge service."
+    disable_fledge_service
+    echo "Remove Fledge service script"
+    remove_fledge_service_file
+    echo "Reset systemctl"
+    reset_systemctl
+fi