docker: bugfix devicehub entrypoint

entrypoint was being put inside the working directory, which is
preserved

that made entrypoint "persistent", avoiding future updates

solution is to put it in the root (/), which is not preserved

docker/devicehub.Dockerfile

@@ -28,5 +28,5 @@ COPY . .
 COPY examples/app.py .
 RUN pip install -e .
 
-COPY docker/devicehub.entrypoint.sh .
-ENTRYPOINT sh ./devicehub.entrypoint.sh
+COPY docker/devicehub.entrypoint.sh /
+ENTRYPOINT sh /devicehub.entrypoint.sh

docker/devicehub.entrypoint.sh

@@ -7,6 +7,7 @@ set -x
 
 # 3. Generate an environment .env file.
 gen_env_vars() {
+        CONFIG_OIDC="${CONFIG_OIDC:-y}"
         # specific dpp env vars
         if [ "${DPP_MODULE}" = 'y' ]; then
                 dpp_env_vars="$(cat <<END
@@ -67,7 +68,10 @@ init_data() {
         # 11. Generate a minimal data structure.
         #   TODO it has some errors (?)
         flask initdata || true
-        #flask dlt_register_user /opt/devicehub/examples/users_devicehub.json || true
+
+        if [ "${EREUSE_PILOT:-}" = 'y' ]; then
+                flask dlt_register_user /opt/devicehub/users_devicehub.json || true
+        fi
 }
 
 big_error() {
@@ -165,14 +169,6 @@ config_dpp_part1() {
         #flask dlt_register_user "${EMAIL_DEMO}" ${PASSWORD_DEMO} Operator
 }
 
-config_dpp_part2() {
-        # 16.
-        #   commented because this fails with wrong DLT credentials
-        #flask check_install "${EMAIL_DEMO}" "${PASSWORD_DEMO}"
-        # 20. config server or client ID
-        config_oidc
-}
-
 config_phase() {
         init_flagfile='docker__already_configured'
         if [ ! -f "${init_flagfile}" ]; then
@@ -194,9 +190,12 @@ config_phase() {
                         /usr/bin/time flask snapshot "${EMAIL_DEMO}" ${PASSWORD_DEMO}
                 fi
 
-                if [ "${DPP_MODULE}" = 'y' ]; then
-                        # 16, 20
-                        config_dpp_part2
+                if [ "${CONFIG_OIDC}" = 'y' ]; then
+                        # 16.
+                        #   commented because this fails with wrong DLT credentials
+                        #flask check_install "${EMAIL_DEMO}" "${PASSWORD_DEMO}"
+                        # 20. config server or client ID
+                        config_oidc
                 fi
 
                 # remain next command as the last operation for this if conditional