Merge branch 'jinja2-config' into 'develop'

Jinja2 template for configuration files

See merge request oai/cn5g/oai-cn5g-amf!172

build/scripts/generate_amf_conf.sh

-# prompt has been removed for easier Ctrl+C Ctrl+V
-# please update the following information according to your configuration
-
-INSTANCE=1
-PREFIX='/usr/local/etc/oai'
-sudo mkdir -m 0777 -p $PREFIX
-cp ../../etc/amf.conf  $PREFIX
-
-declare -A AMF_CONF
-
-AMF_CONF[@INSTANCE@]=$INSTANCE
-AMF_CONF[@PREFIX@]=$PREFIX
-AMF_CONF[@PID_DIRECTORY@]='/var/run'
-
-AMF_CONF[@MCC@]='208'
-AMF_CONF[@MNC@]='95'
-AMF_CONF[@REGION_ID@]='128'
-AMF_CONF[@AMF_SET_ID@]='1'
-
-AMF_CONF[@SERVED_GUAMI_MCC_0@]='208'
-AMF_CONF[@SERVED_GUAMI_MNC_0@]='95'
-AMF_CONF[@SERVED_GUAMI_REGION_ID_0@]='128'
-AMF_CONF[@SERVED_GUAMI_AMF_SET_ID_0@]='1'
-AMF_CONF[@SERVED_GUAMI_MCC_1@]='460'
-AMF_CONF[@SERVED_GUAMI_MNC_1@]='11'
-AMF_CONF[@SERVED_GUAMI_REGION_ID_1@]='10'
-AMF_CONF[@SERVED_GUAMI_AMF_SET_ID_1@]='1'
-
-AMF_CONF[@PLMN_SUPPORT_MCC@]='208'
-AMF_CONF[@PLMN_SUPPORT_MNC@]='95'
-AMF_CONF[@PLMN_SUPPORT_TAC@]='0xa000'
-AMF_CONF[@SST_0@]='128'
-AMF_CONF[@SD_0@]='128'
-AMF_CONF[@SST_1@]='1'
-AMF_CONF[@SD_1@]='1'
-
-AMF_CONF[@AMF_INTERFACE_NAME_FOR_NGAP@]='eth0'
-AMF_CONF[@AMF_INTERFACE_NAME_FOR_N11@]='eth0'
-
-AMF_CONF[@EXTERNAL_AUSF@]='no'
-AMF_CONF[@EXTERNAL_UDM@]='no'
-AMF_CONF[@EXTERNAL_NRF@]='no'
-AMF_CONF[@EXTERNAL_NSSF@]='no'
-AMF_CONF[@USE_FQDN_DNS@]='no'
-AMF_CONF[@USE_HTTP2@]='no'
-
-AMF_CONF[@NF_REGISTRATION@]='no'
-AMF_CONF[@SMF_SELECTION@]='no'
-
-AMF_CONF[@SMF_INSTANCE_ID_0@]='1'
-AMF_CONF[@SMF_IPV4_ADDR_0@]='192.168.22.208'
-AMF_CONF[@SMF_HTTP_VERSION_0@]='v1'
-AMF_CONF[@SMF_FQDN_0@]='oai-smf'
-AMF_CONF[@SMF_INSTANCE_ID_1@]='2'
-AMF_CONF[@SMF_IPV4_ADDR_1@]='192.168.22.207'
-AMF_CONF[@SMF_HTTP_VERSION_1@]='v1'
-AMF_CONF[@SMF_FQDN_1@]='oai-smf2'
-
-AMF_CONF[@NRF_IPV4_ADDRESS@]='192.168.22.195'
-AMF_CONF[@NRF_PORT@]='80'
-AMF_CONF[@NRF_API_VERSION@]='v1'
-AMF_CONF[@NRF_FQDN@]='oai-nrf'
-
-AMF_CONF[@AUSF_IPV4_ADDRESS@]='192.168.22.199'
-AMF_CONF[@AUSF_PORT@]='80'
-AMF_CONF[@AUSF_API_VERSION@]='v1'
-AMF_CONF[@AUSF_FQDN@]='oai-ausf'
-
-AMF_CONF[@NSSF_IPV4_ADDRESS@]='192.168.22.214'
-AMF_CONF[@NSSF_PORT@]='80'
-AMF_CONF[@NSSF_API_VERSION@]='v1'
-AMF_CONF[@NSSF_FQDN@]='oai-nssf'
-
-AMF_CONF[@UDM_IPV4_ADDRESS@]='192.168.22.209'
+#!/bin/sh
+################################################################################
+# Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The OpenAirInterface Software Alliance licenses this file to You under
+# the OAI Public License, Version 1.1  (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.openairinterface.org/?page_id=698
+#
+# 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.
+#-------------------------------------------------------------------------------
+# For more information about the OpenAirInterface (OAI) Software Alliance:
+#      contact@openairinterface.org
+################################################################################
+
+## Sample values for configuration
+export INSTANCE=0
+export PID_DIRECTORY=/var/run
+export MCC=208
+export MNC=95
+export REGION_ID=128
+export AMF_SET_ID=1
+export SERVED_GUAMI_MCC_0=208
+export SERVED_GUAMI_MNC_0=95
+export SERVED_GUAMI_REGION_ID_0=128
+export SERVED_GUAMI_AMF_SET_ID_0=1
+export PLMN_SUPPORT_MCC=208
+export PLMN_SUPPORT_MNC=95
+export PLMN_SUPPORT_TAC=0xa000
+export SST_0=1
+export SD_0=0xFFFFFF
+export SST_1=1
+export SD_1=1
+export AMF_INTERFACE_NAME_FOR_NGAP=eth0
+export AMF_INTERFACE_NAME_FOR_N11=eth0
+export SMF_INSTANCE_ID_0=1
+export SMF_FQDN_0=localhost
+export SMF_IPV4_ADDR_0=127.0.0.1
+export SMF_HTTP_VERSION_0=v1
+export SELECTED_0=true
+export MYSQL_SERVER=127.0.0.1
+export MYSQL_USER=root
+export MYSQL_PASS=linux
+export MYSQL_DB=oai_db
+export NRF_IPV4_ADDRESS=127.0.0.1
+export NRF_PORT=80
+export EXTERNAL_NRF=no
+export NF_REGISTRATION=yes
+export SMF_SELECTION=yes
+export USE_FQDN_DNS=yes
+export EXTERNAL_AUSF=yes
+export EXTERNAL_UDM=no
+export EXTERNAL_NSSF=no
+export USE_HTTP2=no
+export NRF_API_VERSION=v1
+export NRF_FQDN=localhost
+export AUSF_IPV4_ADDRESS=127.0.0.1
+export AUSF_PORT=80
+export AUSF_API_VERSION=v1
+export AUSF_FQDN=localhost
+export UDM_IPV4_ADDRESS=127.0.0.1
+export UDM_PORT=80
+export UDM_API_VERSION=v2
+export UDM_FQDN=localhost
+
+../../scripts/entrypoint.py
\ No newline at end of file
-AMF_CONF[@UDM_PORT@]='80'
-AMF_CONF[@UDM_API_VERSION@]='v1'
-AMF_CONF[@UDM_FQDN@]='oai-udm'
-
-AMF_CONF[@NRF_SELECTION@]='no'
-AMF_CONF[@INT_ALGO_LIST@]='[ "NIA0" , "NIA1" , "NIA2" ]'
-AMF_CONF[@CIPH_ALGO_LIST@]='[ "NEA0" , "NEA1" , "NEA2" ]'
-
-AMF_CONF[@MYSQL_SERVER@]='127.0.0.1'
-AMF_CONF[@MYSQL_USER@]='root'
-AMF_CONF[@MYSQL_PASS@]='linux'
-AMF_CONF[@MYSQL_DB@]='oai_db'
-
-for K in "${!AMF_CONF[@]}"; do 
-  egrep -lRZ "$K" $PREFIX | xargs -0 -l sed -i -e "s|$K|${AMF_CONF[$K]}|g"
-  ret=$?;[[ ret -ne 0 ]] && echo "Tried to replace $K with ${AMF_CONF[$K]}"
-done

ci-scripts/docker/Dockerfile.ci.ubuntu

@@ -64,6 +64,8 @@ RUN apt-get update && \
       openssl \
       libbrotli1 \
       netbase \
+      python3\
+      python3-jinja2\
 # Ubuntu 18 --> libasan4
 # Ubuntu 20 --> libasan5
 # Ubuntu 22 --> libasan6
@@ -94,7 +96,7 @@ RUN apt-get update && \
 WORKDIR /openair-amf/bin
 COPY --from=oai-amf-builder \
     /openair-amf/build/amf/build/oai_amf \
-    /openair-amf/scripts/entrypoint.sh \
+    /openair-amf/scripts/entrypoint.py \
     /openair-amf/scripts/healthcheck.sh \
     ./
 
@@ -127,5 +129,5 @@ HEALTHCHECK --interval=10s \
             --retries=6 \
     CMD /openair-amf/bin/healthcheck.sh
 
-ENTRYPOINT ["/bin/bash","/openair-amf/bin/entrypoint.sh"]
+ENTRYPOINT ["python3", "/openair-amf/bin/entrypoint.py"]
 CMD ["/openair-amf/bin/oai_amf", "-c", "/openair-amf/etc/amf.conf", "-o"]

ci-scripts/flatten_image.py

@@ -81,7 +81,7 @@ def perform_flattening(tag):
         cmd += ' --change "EXPOSE 38412/sctp" '
     cmd += ' --change "HEALTHCHECK --interval=10s --timeout=15s --retries=6 CMD /openair-amf/bin/healthcheck.sh" '
     cmd += ' --change "CMD [\\"/openair-amf/bin/oai_amf\\", \\"-c\\", \\"/openair-amf/etc/amf.conf\\", \\"-o\\"]" '
-    cmd += ' --change "ENTRYPOINT [\\"/bin/bash\\", \\"/openair-amf/bin/entrypoint.sh\\"]" '
+    cmd += ' --change "ENTRYPOINT [\\"python3\\", \\"/openair-amf/bin/entrypoint.py\\"]" '
     cmd += ' - ' + image_prefix + tag
     print (cmd)
     subprocess.check_output(cmd, shell=True, universal_newlines=True)

docker/Dockerfile.amf.rhel8

@@ -107,6 +107,8 @@ RUN rm -f /etc/rhsm-host && \
       boost \
       libevent \
       findutils \
+      python3\
+      python3-jinja2\
       mysql-libs \
       libconfig && \
     microdnf clean all -y && \
@@ -119,7 +121,7 @@ RUN rm -f /etc/rhsm-host && \
 WORKDIR /openair-amf/bin
 COPY --from=oai-amf-builder \
     /openair-amf/build/amf/build/oai_amf \
-    /openair-amf/scripts/entrypoint.sh \
+    /openair-amf/scripts/entrypoint.py \
     /openair-amf/scripts/healthcheck.sh \
     ./
 
@@ -146,5 +148,5 @@ HEALTHCHECK --interval=10s \
             --retries=6 \
     CMD /openair-amf/bin/healthcheck.sh
 
-ENTRYPOINT ["/openair-amf/bin/entrypoint.sh"]
+ENTRYPOINT ["python3", "/openair-amf/bin/entrypoint.py"]
 CMD ["/openair-amf/bin/oai_amf", "-c", "/openair-amf/etc/amf.conf", "-o"]

docker/Dockerfile.amf.ubuntu

@@ -85,6 +85,8 @@ RUN apt-get update && \
       openssl \
       libbrotli1 \
       netbase \
+      python3\
+      python3-jinja2\
 # Ubuntu 18 --> libasan4
 # Ubuntu 20 --> libasan5
 # Ubuntu 22 --> libasan6
@@ -115,7 +117,7 @@ RUN apt-get update && \
 WORKDIR /openair-amf/bin
 COPY --from=oai-amf-builder \
     /openair-amf/build/amf/build/oai_amf \
-    /openair-amf/scripts/entrypoint.sh \
+    /openair-amf/scripts/entrypoint.py \
     /openair-amf/scripts/healthcheck.sh \
     ./
 
@@ -148,5 +150,5 @@ HEALTHCHECK --interval=10s \
             --retries=6 \
     CMD /openair-amf/bin/healthcheck.sh
 
-ENTRYPOINT ["/bin/bash","/openair-amf/bin/entrypoint.sh"]
+ENTRYPOINT ["python3", "/openair-amf/bin/entrypoint.py"]
 CMD ["/openair-amf/bin/oai_amf", "-c", "/openair-amf/etc/amf.conf", "-o"]

etc/amf.conf

@@ -19,130 +19,132 @@
 #      contact@openairinterface.org
 ################################################################################
 
-AMF = 
+#### This file is a jinja2 template all the values between double curly brace will be replaced with environment variables
+
+AMF =
 {
-  INSTANCE_ID = @INSTANCE@;            # 0 is the default
-  PID_DIRECTORY = "@PID_DIRECTORY@";   # /var/run is the default
-  
+  INSTANCE_ID = {{ env["INSTANCE"] if "INSTANCE" in env.keys() else 0 }} ;            # 0 is the default
+  PID_DIRECTORY = "{{ env["PID_DIRECTORY"] if "PID_DIRECTORY" in env.keys() else '/var/run' }}";   # /var/run is the default
+
   AMF_NAME = "OAI-AMF";
-  
+
   RELATIVE_CAPACITY = 30;
   # Display statistics about whole system (in seconds)
-  STATISTICS_TIMER_INTERVAL = 20;  
-  
+  STATISTICS_TIMER_INTERVAL = 20;
+
   CORE_CONFIGURATION:
   {
     EMERGENCY_SUPPORT = "false";
   };
-  
-  GUAMI: 
+
+  GUAMI:
   {
-    MCC = "@MCC@"; MNC = "@MNC@"; RegionID = "@REGION_ID@"; AMFSetID = "@AMF_SET_ID@"; AMFPointer = "1" 
+    MCC = "{{ env["MCC"] }}"; MNC = "{{ env["MNC"] }}"; RegionID = "{{ env["REGION_ID"] }}"; AMFSetID = "{{ env["AMF_SET_ID"] }}"; AMFPointer = "1"
   }
-  
+
   SERVED_GUAMI_LIST = (
-    {MCC = "@SERVED_GUAMI_MCC_0@"; MNC = "@SERVED_GUAMI_MNC_0@"; RegionID = "@SERVED_GUAMI_REGION_ID_0@"; AMFSetID = "@SERVED_GUAMI_AMF_SET_ID_0@"; AMFPointer = "0"}, #48bits <MCC><MNC><RegionID><AMFSetID><AMFPointer>
-    {MCC = "@SERVED_GUAMI_MCC_1@"; MNC = "@SERVED_GUAMI_MNC_1@"; RegionID = "@SERVED_GUAMI_REGION_ID_1@"; AMFSetID = "@SERVED_GUAMI_AMF_SET_ID_1@"; AMFPointer = "1"}  #48bits <MCC><MNC><RegionID><AMFSetID><AMFPointer>
+    {MCC = "{{ env["SERVED_GUAMI_MCC_0"] }}"; MNC = "{{ env["SERVED_GUAMI_MNC_0"] }}"; RegionID = "{{ env["SERVED_GUAMI_REGION_ID_0"] }}"; AMFSetID = "{{ env["SERVED_GUAMI_AMF_SET_ID_0"] }}"; AMFPointer = "0"},
+    #48bits <MCC><MNC><RegionID><AMFSetID><AMFPointer>
+    {MCC = "{{ env["SERVED_GUAMI_MCC_1"] }}"; MNC = "{{ env["SERVED_GUAMI_MNC_1"] }}"; RegionID = "{{ env["SERVED_GUAMI_REGION_ID_1"] }}"; AMFSetID = "{{ env["SERVED_GUAMI_AMF_SET_ID_1"] }}"; AMFPointer = "1"}
+    #48bits <MCC><MNC><RegionID><AMFSetID><AMFPointer>
   );
-    
-  PLMN_SUPPORT_LIST = (
-  {
-    MCC = "@PLMN_SUPPORT_MCC@"; MNC = "@PLMN_SUPPORT_MNC@"; TAC = @PLMN_SUPPORT_TAC@;  
+
+  PLMN_SUPPORT_LIST = ({
+    MCC = "{{ env["PLMN_SUPPORT_MCC"] }}"; MNC = "{{ env["PLMN_SUPPORT_MNC"] }}"; TAC = {{ env["PLMN_SUPPORT_TAC"] }};
     SLICE_SUPPORT_LIST = (
-      {SST = @SST_0@; SD = "@SD_0@"},  
-      {SST = @SST_1@; SD = "@SD_1@"}, 
-      {SST = @SST_2@; SD = "@SD_2@"}   
+      {SST = {{ env["SST_0"] }}; SD = "{{ env["SD_0"] if "SD_0" in env.keys() else '0xFFFFFF' }}"}
+      {% if "SST_1" in env.keys() %},{SST = {{ env["SST_1"] }};SD = "{{ env["SD_1"] if "SD_1" in env.keys() else '0xFFFFFF' }}"}{% endif %}
+      {% if "SST_2" in env.keys() %},{SST = {{ env["SST_2"] }};SD = "{{ env["SD_2"] if "SD_2" in env.keys() else '0xFFFFFF' }}"}{% endif %}
      )
-  }
-  );
-  
+  });
+
   INTERFACES:
   {
-    # AMF binded interface for N1/N2 interface (NGAP) 
-    NGAP_AMF: 
+    # AMF binded interface for N1/N2 interface (NGAP)
+    NGAP_AMF:
     {
-      INTERFACE_NAME = "@AMF_INTERFACE_NAME_FOR_NGAP@";  
+      INTERFACE_NAME = "{{ env["AMF_INTERFACE_NAME_FOR_NGAP"] }}";
       IPV4_ADDRESS   = "read";
-      PORT           = 38412;                            
-      PPID           = 60;                               
-    };  
-   
+      PORT           = 38412;
+      PPID           = 60;
+    };
+
     # AMF binded interface for SBI (N11 (SMF)/N12 (AUSF), etc.)
     SBI:
     {
-      INTERFACE_NAME = "@AMF_INTERFACE_NAME_FOR_N11@"; 
-      IPV4_ADDRESS   = "read"; 
-      PORT           = 80;                             
-      API_VERSION    = "v1";                           
-      HTTP2_PORT     = 8080;                                
-      
+      INTERFACE_NAME = "{{ env["AMF_INTERFACE_NAME_FOR_N11"] }}";
+      IPV4_ADDRESS   = "read";
+      PORT           = 80;
+      API_VERSION    = "v1";
+      HTTP2_PORT     = 8080;
+
       SMF_INSTANCES_POOL = (
-        {SMF_INSTANCE_ID = @SMF_INSTANCE_ID_0@; IPV4_ADDRESS = "@SMF_IPV4_ADDR_0@"; PORT = "80"; HTTP2_PORT = 8080, VERSION = "@SMF_HTTP_VERSION_0@"; FQDN = "@SMF_FQDN_0@", SELECTED = "true"},
-        {SMF_INSTANCE_ID = @SMF_INSTANCE_ID_1@; IPV4_ADDRESS = "@SMF_IPV4_ADDR_1@"; PORT = "80"; HTTP2_PORT = 8080, VERSION = "@SMF_HTTP_VERSION_1@"; FQDN = "@SMF_FQDN_1@", SELECTED = "false"} 
+        {SMF_INSTANCE_ID = 1; IPV4_ADDRESS = "{{ env["SMF_IPV4_ADDR_0"] if "SMF_IPV4_ADDR_0" in env.keys() else '0.0.0.0' }}"; PORT = "80"; HTTP2_PORT = 8080, VERSION = "{{ env["SMF_HTTP_VERSION"] if "SMF_HTTP_VERSION" in env.keys() else 'v1' }}"; FQDN = "{{ env["SMF_FQDN_0"] if "SMF_FQDN_0" in env.keys() else 'localhost' }}", SELECTED = "{{ env["SELECTED_0"] }}"}
       );
     };
-     
-    NRF : 
+
+    NRF :
     {
-      IPV4_ADDRESS = "@NRF_IPV4_ADDRESS@";  
-      PORT         = @NRF_PORT@;            # Default: 80
-      API_VERSION  = "@NRF_API_VERSION@";   
-      FQDN         = "@NRF_FQDN@"           
+      IPV4_ADDRESS = "{{ env["NRF_IPV4_ADDRESS"] if "NRF_IPV4_ADDRESS" in env.keys() else '0.0.0.0' }}";
+      PORT         = {{ env["NRF_PORT"] if "NRF_PORT" in env.keys() else 80 }};            # Default: 80
+      API_VERSION  = "{{ env["NRF_API_VERSION"] if "NRF_API_VERSION" in env.keys() else 'v1' }}";
+      FQDN         = "{{ env["NRF_FQDN"] if "NRF_FQDN" in env.keys() else 'localhost' }}"
     };
-    
+
     AUSF :
     {
-      IPV4_ADDRESS = "@AUSF_IPV4_ADDRESS@";  
-      PORT         = @AUSF_PORT@;            # Default: 80
-      API_VERSION  = "@AUSF_API_VERSION@";   
-      FQDN         = "@AUSF_FQDN@"           
+      IPV4_ADDRESS = "{{ env["AUSF_IPV4_ADDRESS"] if "AUSF_IPV4_ADDRESS" in env.keys() else '0.0.0.0' }}";
+      PORT         = {{ env["AUSF_PORT"] if "AUSF_PORT" in env.keys() else 80 }};            # Default: 80
+      API_VERSION  = "{{ env["AUSF_API_VERSION"] if "AUSF_API_VERSION" in env.keys() else 'v1' }}";
+      FQDN         = "{{ env["AUSF_FQDN"] if "AUSF_FQDN" in env.keys() else 'localhost' }}"
     };
 
     UDM :
     {
-      IPV4_ADDRESS = "@UDM_IPV4_ADDRESS@";   
-      PORT         = @UDM_PORT@;             # Default: 80
-      API_VERSION  = "v2";                   
-      FQDN         = "@UDM_FQDN@";           
+      IPV4_ADDRESS = "{{ env["UDM_IPV4_ADDRESS"] if "UDM_IPV4_ADDRESS" in env.keys() else '0.0.0.0' }}";
+      PORT         = {{ env["UDM_PORT"] if "UDM_PORT" in env.keys() else 80 }};    # Default: 80
+      API_VERSION  = "{{ env["UDM_API_VERSION"] if "UDM_API_VERSION" in env.keys() else 'v2' }}";
+      FQDN         = "{{ env["UDM_FQDN"] if "UDM_FQDN" in env.keys() else 'localhost' }}"
     };
 
     NSSF :
     {
-      IPV4_ADDRESS = "@NSSF_IPV4_ADDRESS@";  
-      PORT         = @NSSF_PORT@;            # Default: 80
-      API_VERSION  = "@NSSF_API_VERSION@";   
-      FQDN         = "@NSSF_FQDN@"           
+      IPV4_ADDRESS = "{{ env["NSSF_HOST"] if "NSSF_HOST" in env.keys() else '0.0.0.0' }}";
+      PORT         = {{ env["NSSF_PORT"] if "NSSF_PORT" in env.keys() else 80 }};            # Default: 80
+      API_VERSION  = "{{ env["NSSF_API_VERSION"] if "NSSF_API_VERSION" in env.keys() else 'v2' }}";
+      FQDN         = "{{ env["NSSF_FQDN"] if "NSSF_FQDN" in env.keys() else 'oai-nssf' }}"
     };
-  };  
 
-  SUPPORT_FEATURES: 
+  };
+
+  SUPPORT_FEATURES:
   {
-     # STRING, {"yes", "no"}, 
-     NF_REGISTRATION = "@NF_REGISTRATION@";  # Set to yes if AMF resgisters to an NRF
-     NRF_SELECTION   = "@NRF_SELECTION@";    # Set to yes to enable NRF discovery and selection
-     EXTERNAL_NRF    = "@EXTERNAL_NRF@";     # Set to yes if AMF works with an external NRF
-     SMF_SELECTION   = "@SMF_SELECTION@";    # Set to yes to enable SMF discovery and selection
-     EXTERNAL_AUSF   = "@EXTERNAL_AUSF@";    # Set to yes if AMF works with an external AUSF
-     EXTERNAL_UDM    = "@EXTERNAL_UDM@";     # Set to yes if AMF works with an external UDM
-     EXTERNAL_NSSF   = "@EXTERNAL_NSSF@";    # Set to yes if AMF works with an external NSSF
-     USE_FQDN_DNS    = "@USE_FQDN_DNS@";     # Set to yes if AMF relies on a DNS to resolve NRF/SMF/UDM/AUSF's FQDN
-     USE_HTTP2       = "@USE_HTTP2@";        # Set to yes to enable HTTP2 for AMF server
-}
-  
+     # STRING, {"yes", "no"},
+     NF_REGISTRATION = "{{ env["NF_REGISTRATION"] if "NF_REGISTRATION" in env.keys() else 'no' }}";  # Set to yes if AMF registers to an NRF
+     NRF_SELECTION   = "{{ env["NRF_SELECTION"] if "NRF_SELECTION" in env.keys() else 'no' }}";    # Set to yes to enable NRF discovery and selection
+     EXTERNAL_NRF    = "{{ env["EXTERNAL_NRF"] if "EXTERNAL_NRF" in env.keys() else 'no' }}";     # Set to yes if AMF works with an external NRF
+     SMF_SELECTION   = "{{ env["SMF_SELECTION"] if "SMF_SELECTION" in env.keys() else 'no' }}";    # Set to yes to enable SMF discovery and selection
+     EXTERNAL_AUSF   = "{{ env["EXTERNAL_AUSF"] if "EXTERNAL_AUSF" in env.keys() else 'no' }}";    # Set to yes if AMF works with an external AUSF
+     EXTERNAL_UDM    = "{{ env["EXTERNAL_UDM"] if "EXTERNAL_UDM" in env.keys() else 'no' }}";     # Set to yes if AMF works with an external UDM
+     EXTERNAL_NSSF   = "{{ env["EXTERNAL_NSSF"] if "EXTERNAL_NSSF" in env.keys() else 'no' }}";    # Set to yes if AMF works with an external NSSF
+     USE_FQDN_DNS    = "{{ env["USE_FQDN_DNS"] if "USE_FQDN_DNS" in env.keys() else 'no' }}";   # Set to yes if AMF relies on a DNS to resolve NRF/SMF/UDM/AUSF's FQDN
+     USE_HTTP2       = "{{ env["USE_HTTP2"] if "USE_HTTP2" in env.keys() else 'no' }}";        # Set to yes to enable HTTP2 for AMF server
+  }
+
   AUTHENTICATION:
   {
     ## MySQL mandatory options
-    MYSQL_server = "@MYSQL_SERVER@"; # MySQL Server address
-    MYSQL_user   = "@MYSQL_USER@";   # Database server login
-    MYSQL_pass   = "@MYSQL_PASS@";   # Database server password
-    MYSQL_db     = "@MYSQL_DB@";     # Your database name
+    MYSQL_server = "{{ env["MYSQL_SERVER"] if "MYSQL_SERVER" in env.keys() else 'mysql' }}"; # MySQL Server address
+    MYSQL_user   = "{{ env["MYSQL_USER"] if "MYSQL_USER" in env.keys() else 'test' }}";   # Database server login
+    MYSQL_pass   = "{{ env["MYSQL_PASS"] if "MYSQL_PASS" in env.keys() else 'test' }}";   # Database server password
+    MYSQL_db     = "{{ env["MYSQL_DB"] if "MYSQL_DB" in env.keys() else 'oai_db' }}";     # Your database name
     RANDOM = "true";
   };
-  
+
   NAS:
   {
-    ORDERED_SUPPORTED_INTEGRITY_ALGORITHM_LIST = @INT_ALGO_LIST@;  #Default [ "NIA0" , "NIA1" , "NIA2" ];
-    ORDERED_SUPPORTED_CIPHERING_ALGORITHM_LIST = @CIPH_ALGO_LIST@; #Default [ "NEA0" , "NEA1" , "NEA2" ];
+    ORDERED_SUPPORTED_INTEGRITY_ALGORITHM_LIST = {{ env["INT_ALGO_LIST"] if "INT_ALGO_LIST" in env.keys() else [ "NIA0" , "NIA1" , "NIA2" ] | tojson }} ;
+    ORDERED_SUPPORTED_CIPHERING_ALGORITHM_LIST = {{ env["CIPH_ALGO_LIST"] if "CIPH_ALGO_LIST" in env.keys() else [ "NEA0" , "NEA1" , "NEA2" ] | tojson }} ;
   };
 };
 
@@ -151,4 +153,4 @@ MODULES =
   NGAP_MESSAGE = (
     {MSG_NAME = "NGSetupRequest"; ProcedureCode = 21; TypeOfMessage = "initialMessage"}
   );
-};
+};
\ No newline at end of file

scripts/entrypoint.py

+#!/usr/bin/env python3
+################################################################################
+# Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The OpenAirInterface Software Alliance licenses this file to You under
+# the OAI Public License, Version 1.1  (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.openairinterface.org/?page_id=698
+#
+# 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.
+#-------------------------------------------------------------------------------
+# For more information about the OpenAirInterface (OAI) Software Alliance:
+#      contact@openairinterface.org
+################################################################################
+
+from jinja2 import Environment, FileSystemLoader
+import socket
+import os
+import sys
+
+CONFIG_FILE = str(os.getenv('CONFIG_FILE','/openair-amf/etc/amf.conf'))
+MOUNT_CONFIG = str(os.getenv('MOUNT_CONFIG','no')).lower()
+
+def resolve(hostname):
+    try:
+        return socket.gethostbyname(hostname)
+    except socket.error:
+        print(f"Not able to resolve {hostname}")
+
+def render(filepath,funcs,values):
+    env = Environment(loader=FileSystemLoader(os.path.dirname(filepath)))
+    jinja_template = env.get_template(os.path.basename(filepath))
+    jinja_template.globals.update(funcs)
+    template_string = jinja_template.render(env=values)
+    return template_string
+
+env_variables = dict()
+#list of all the environment variables
+for name, value in os.environ.items():
+    env_variables.update({name:value})
+
+if MOUNT_CONFIG != "yes":
+    output = render(CONFIG_FILE,{"resolve":resolve},env_variables)
+    with open(CONFIG_FILE, "w") as fh:
+        fh.write(output)
+    print(f"Configuration file {CONFIG_FILE} is ready")
+    if len(sys.argv) == 1:
+        sys.exit(0)
+    os.execvp(sys.argv[1], sys.argv[1:])     #important for running the network function it works like exec $@
+else:
+    print("Configuration file is mounted to the network function")
\ No newline at end of file

scripts/entrypoint.sh

-#!/bin/bash
-
-set -euo pipefail
-
-CONFIG_DIR="/openair-amf/etc"
-
-# Default values
-EXTERNAL_NRF=${EXTERNAL_NRF:-no}
-EXTERNAL_NSSF=${EXTERNAL_NSSF:-no}
-EXTERNAL_AUSF=${EXTERNAL_AUSF:-no}
-EXTERNAL_UDM=${EXTERNAL_UDM:-no}
-UDM_IPV4_ADDRESS=${UDM_IPV4_ADDRESS:-0.0.0.0}
-UDM_PORT=${UDM_PORT:-80}
-UDM_API_VERSION=${UDM_API_VERSION:-v2}
-UDM_FQDN=${UDM_FQDN:-oai-udm}
-EXTERNAL_NRF=${EXTERNAL_NRF:-no}
-NRF_SELECTION=${NRF_SELECTION:-no}
-EXTERNAL_NSSF=${EXTERNAL_NSSF:-no}
-NSSF_IPV4_ADDRESS=${NSSF_IPV4_ADDRESS:-0.0.0.0}
-NSSF_PORT=${NSSF_PORT:-80}
-NSSF_API_VERSION=${NSSF_API_VERSION:-v2}
-NSSF_FQDN=${NSSF_FQDN:-oai-nssf}
-INT_ALGO_LIST=${INT_ALGO_LIST:-'[ "NIA0" , "NIA1" , "NIA2" ]'}
-CIPH_ALGO_LIST=${CIPH_ALGO_LIST:-'[ "NEA0" , "NEA1" , "NEA2" ]'}
-USE_HTTP2=${USE_HTTP2:-no}
-SST_0=${SST_0:-128}
-SD_0=${SD_0:-128}
-SST_1=${SST_1:-1}
-SD_1=${SD_1:-0xFFFFFF}
-SST_2=${SST_2:-130}
-SD_2=${SD_2:-130}
-OPERATOR_KEY=${OPERATOR_KEY:-'63bfa50ee6523365ff14c1f45f88737d'}
-
-if [[ ${USE_FQDN_DNS} == "yes" ]];then
-    NSSF_IPV4_ADDR=${NSSF_IPV4_ADDR_0:-0.0.0.0}
-    SMF_IPV4_ADDR_0=${SMF_IPV4_ADDR_0:-0.0.0.0}
-    SMF_IPV4_ADDR_1=${SMF_IPV4_ADDR_1:-0.0.0.0}
-    NRF_IPV4_ADDRESS=${NRF_IPV4_ADDRESS:-0.0.0.0}
-    AUSF_IPV4_ADDRESS=${AUSF_IPV4_ADDRESS:-0.0.0.0}
-    UDM_IPV4_ADDRESS=${UDM_IPV4_ADDRESS:-0.0.0.0}
-fi
-
-for c in ${CONFIG_DIR}/*.conf; do
-    # grep variable names (format: ${VAR}) from template to be rendered
-    if ! grep -oP '@[a-zA-Z0-9_]+@' ${c}; then
-        echo "Configuration is already set"
-        exec "$@"
-    fi
-    VARS=$(grep -oP '@[a-zA-Z0-9_]+@' ${c} | sort | uniq | xargs)
-    echo "Now setting these variables '${VARS}'"
-
-    # create sed expressions for substituting each occurrence of ${VAR}
-    # with the value of the environment variable "VAR"
-    EXPRESSIONS=""
-    for v in ${VARS}; do
-        NEW_VAR=`echo $v | sed -e "s#@##g"`
-        if [[ -z ${!NEW_VAR+x} ]]; then
-            echo "Error: Environment variable '${NEW_VAR}' is not set." \
-                "Config file '$(basename $c)' requires all of $VARS."
-            exit 1
-        fi
-        EXPRESSIONS="${EXPRESSIONS};s|${v}|${!NEW_VAR}|g"
-    done
-    EXPRESSIONS="${EXPRESSIONS#';'}"
-
-    # render template and inline replace config file
-    sed -i "${EXPRESSIONS}" ${c}
-done
-echo "Done setting the configuration"
-exec "$@"