Use exec in all components' entrypoints

Use the exec Bash command so that the final running application becomes
the container’s PID 1. This allows the application to receive any Unix
signals sent to the container, in accordance with
https://docs.docker.com/develop/develop-images/dockerfile_best-practices/#entrypoint

Currently, SIGTERM signals sent by kubernetes are not passed to the
executed binary.

Signed-off-by: Xavier Duthil <xavier.duthil@corp.ovh.com>

make/photon/chartserver/docker-entrypoint.sh

@@ -5,6 +5,4 @@ set -e
 /home/chart/install_cert.sh
 
 #Start the server process
-/home/chart/chartm
-
-set +e
+exec /home/chart/chartm

make/photon/core/entrypoint.sh

@@ -4,4 +4,4 @@ set -e
 
 /harbor/install_cert.sh
 
-/harbor/harbor_core
+exec /harbor/harbor_core

make/photon/exporter/entrypoint.sh

@@ -4,4 +4,4 @@ set -e
 
 /harbor/install_cert.sh
 
-/harbor/harbor_exporter
+exec /harbor/harbor_exporter

make/photon/jobservice/entrypoint.sh

@@ -4,4 +4,4 @@ set -e
 
 /harbor/install_cert.sh
 
-/harbor/harbor_jobservice -c /etc/jobservice/config.yml
+exec /harbor/harbor_jobservice -c /etc/jobservice/config.yml

make/photon/registry/entrypoint.sh

@@ -10,4 +10,4 @@ set -e
 
 /home/harbor/install_cert.sh
 
-/usr/bin/registry_DO_NOT_USE_GC serve /etc/registry/config.yml
+exec /usr/bin/registry_DO_NOT_USE_GC serve /etc/registry/config.yml

make/photon/trivy-adapter/entrypoint.sh

@@ -4,4 +4,4 @@ set -e
 
 /home/scanner/install_cert.sh
 
-/home/scanner/bin/scanner-trivy
+exec /home/scanner/bin/scanner-trivy