diff --git a/installers/charm/grafana/requirements.txt b/installers/charm/grafana/requirements.txt
index f10a199..1a8928c 100644
--- a/installers/charm/grafana/requirements.txt
+++ b/installers/charm/grafana/requirements.txt
@@ -19,4 +19,4 @@
 # osm-charmers@lists.launchpad.net
 ##
 
-git+https://github.com/davigar15/ops-lib-charmed-osm/@e7f26cd29b322e175a23cadbe4546b7f2bbf111c
\ No newline at end of file
+git+https://github.com/charmed-osm/ops-lib-charmed-osm/@master
\ No newline at end of file
diff --git a/installers/charm/grafana/tests/__init__.py b/installers/charm/grafana/tests/__init__.py
index 0967ea6..446d5ce 100644
--- a/installers/charm/grafana/tests/__init__.py
+++ b/installers/charm/grafana/tests/__init__.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# Copyright 2021 Canonical Ltd.
+# Copyright 2020 Canonical Ltd.
 #
 # Licensed under the Apache License, Version 2.0 (the "License"); you may
 # not use this file except in compliance with the License. You may obtain
@@ -27,7 +27,14 @@
 
 import mock
 
+
+class OCIImageResourceErrorMock(Exception):
+    pass
+
+
 sys.path.append("src")
 
 oci_image = mock.MagicMock()
+oci_image.OCIImageResourceError = OCIImageResourceErrorMock
 sys.modules["oci_image"] = oci_image
+sys.modules["oci_image"].OCIImageResource().fetch.return_value = {}
diff --git a/installers/charm/keystone/requirements.txt b/installers/charm/keystone/requirements.txt
index d42bd9e..5c18be8 100644
--- a/installers/charm/keystone/requirements.txt
+++ b/installers/charm/keystone/requirements.txt
@@ -19,4 +19,4 @@
 # osm-charmers@lists.launchpad.net
 ##
 cryptography
-git+https://github.com/davigar15/ops-lib-charmed-osm/@e7f26cd29b322e175a23cadbe4546b7f2bbf111c
\ No newline at end of file
+git+https://github.com/charmed-osm/ops-lib-charmed-osm/@master
\ No newline at end of file
diff --git a/installers/charm/keystone/tests/__init__.py b/installers/charm/keystone/tests/__init__.py
index ca37e3b..446d5ce 100644
--- a/installers/charm/keystone/tests/__init__.py
+++ b/installers/charm/keystone/tests/__init__.py
@@ -27,7 +27,14 @@
 
 import mock
 
+
+class OCIImageResourceErrorMock(Exception):
+    pass
+
+
 sys.path.append("src")
 
 oci_image = mock.MagicMock()
+oci_image.OCIImageResourceError = OCIImageResourceErrorMock
 sys.modules["oci_image"] = oci_image
+sys.modules["oci_image"].OCIImageResource().fetch.return_value = {}
diff --git a/installers/charm/lcm/requirements.txt b/installers/charm/lcm/requirements.txt
index f10a199..1a8928c 100644
--- a/installers/charm/lcm/requirements.txt
+++ b/installers/charm/lcm/requirements.txt
@@ -19,4 +19,4 @@
 # osm-charmers@lists.launchpad.net
 ##
 
-git+https://github.com/davigar15/ops-lib-charmed-osm/@e7f26cd29b322e175a23cadbe4546b7f2bbf111c
\ No newline at end of file
+git+https://github.com/charmed-osm/ops-lib-charmed-osm/@master
\ No newline at end of file
diff --git a/installers/charm/lcm/tests/__init__.py b/installers/charm/lcm/tests/__init__.py
index ee5553b..446d5ce 100644
--- a/installers/charm/lcm/tests/__init__.py
+++ b/installers/charm/lcm/tests/__init__.py
@@ -24,9 +24,17 @@
 
 import sys
 
+
 import mock
 
+
+class OCIImageResourceErrorMock(Exception):
+    pass
+
+
 sys.path.append("src")
 
 oci_image = mock.MagicMock()
+oci_image.OCIImageResourceError = OCIImageResourceErrorMock
 sys.modules["oci_image"] = oci_image
+sys.modules["oci_image"].OCIImageResource().fetch.return_value = {}
diff --git a/installers/charm/mon/config.yaml b/installers/charm/mon/config.yaml
index 5391497..f6d1ae1 100644
--- a/installers/charm/mon/config.yaml
+++ b/installers/charm/mon/config.yaml
@@ -76,3 +76,11 @@
     description: MON will use Keystone backend
     type: boolean
     default: false
+  certificates:
+    type: string
+    description: |
+      comma-separated list of <name>:<content> certificates.
+      Where:
+        name: name of the file for the certificate
+        content: base64 content of the certificate
+      The path for the files is /certs.
diff --git a/installers/charm/mon/requirements.txt b/installers/charm/mon/requirements.txt
index f10a199..1a8928c 100644
--- a/installers/charm/mon/requirements.txt
+++ b/installers/charm/mon/requirements.txt
@@ -19,4 +19,4 @@
 # osm-charmers@lists.launchpad.net
 ##
 
-git+https://github.com/davigar15/ops-lib-charmed-osm/@e7f26cd29b322e175a23cadbe4546b7f2bbf111c
\ No newline at end of file
+git+https://github.com/charmed-osm/ops-lib-charmed-osm/@master
\ No newline at end of file
diff --git a/installers/charm/mon/src/charm.py b/installers/charm/mon/src/charm.py
index d0145d4..ab6dd2d 100755
--- a/installers/charm/mon/src/charm.py
+++ b/installers/charm/mon/src/charm.py
@@ -23,8 +23,9 @@
 # pylint: disable=E0213
 
 
+import base64
 import logging
-from typing import NoReturn
+from typing import NoReturn, Optional
 
 
 from ops.main import main
@@ -33,7 +34,7 @@
 from opslib.osm.interfaces.keystone import KeystoneClient
 from opslib.osm.interfaces.mongo import MongoClient
 from opslib.osm.interfaces.prometheus import PrometheusClient
-from opslib.osm.pod import ContainerV3Builder, PodSpecV3Builder
+from opslib.osm.pod import ContainerV3Builder, FilesV3Builder, PodSpecV3Builder
 from opslib.osm.validator import ModelValidator, validator
 
 
@@ -42,6 +43,26 @@
 PORT = 8000
 
 
+def _check_certificate_data(name: str, content: str):
+    if not name or not content:
+        raise ValueError("certificate name and content must be a non-empty string")
+
+
+def _extract_certificates(certs_config: str):
+    certificates = {}
+    if certs_config:
+        cert_list = certs_config.split(",")
+        for cert in cert_list:
+            name, content = cert.split(":")
+            _check_certificate_data(name, content)
+            certificates[name] = content
+    return certificates
+
+
+def decode(content: str):
+    return base64.b64decode(content.encode("utf-8")).decode("utf-8")
+
+
 class ConfigModel(ModelValidator):
     keystone_enabled: bool
     vca_host: str
@@ -57,6 +78,7 @@
     grafana_url: str
     grafana_user: str
     grafana_password: str
+    certificates: Optional[str]
 
     @validator("log_level")
     def validate_log_level(cls, v):
@@ -64,6 +86,16 @@
             raise ValueError("value must be INFO or DEBUG")
         return v
 
+    @validator("certificates")
+    def validate_certificates(cls, v):
+        # Raises an exception if it cannot extract the certificates
+        _extract_certificates(v)
+        return v
+
+    @property
+    def certificates_dict(cls):
+        return _extract_certificates(cls.certificates) if cls.certificates else {}
+
 
 class MonCharm(CharmedOsmBase):
     def __init__(self, *args) -> NoReturn:
@@ -105,6 +137,15 @@
         if missing_relations:
             raise RelationsMissing(missing_relations)
 
+    def _build_cert_files(
+        self,
+        config: ConfigModel,
+    ):
+        cert_files_builder = FilesV3Builder()
+        for name, content in config.certificates_dict.items():
+            cert_files_builder.add_file(name, decode(content), mode=0o600)
+        return cert_files_builder.build()
+
     def build_pod_spec(self, image_info):
         # Validate config
         config = ConfigModel(**dict(self.config))
@@ -114,6 +155,9 @@
         pod_spec_builder = PodSpecV3Builder()
         # Build Container
         container_builder = ContainerV3Builder(self.app.name, image_info)
+        certs_files = self._build_cert_files(config)
+        if certs_files:
+            container_builder.add_volume_config("certs", "/certs", certs_files)
         container_builder.add_port(name=self.app.name, port=PORT)
         container_builder.add_envs(
             {
diff --git a/installers/charm/mon/tests/__init__.py b/installers/charm/mon/tests/__init__.py
index ee5553b..446d5ce 100644
--- a/installers/charm/mon/tests/__init__.py
+++ b/installers/charm/mon/tests/__init__.py
@@ -24,9 +24,17 @@
 
 import sys
 
+
 import mock
 
+
+class OCIImageResourceErrorMock(Exception):
+    pass
+
+
 sys.path.append("src")
 
 oci_image = mock.MagicMock()
+oci_image.OCIImageResourceError = OCIImageResourceErrorMock
 sys.modules["oci_image"] = oci_image
+sys.modules["oci_image"].OCIImageResource().fetch.return_value = {}
diff --git a/installers/charm/mon/tests/test_charm.py b/installers/charm/mon/tests/test_charm.py
index 858ff7c..dcf74ed 100644
--- a/installers/charm/mon/tests/test_charm.py
+++ b/installers/charm/mon/tests/test_charm.py
@@ -20,6 +20,7 @@
 # osm-charmers@lists.launchpad.net
 ##
 
+import base64
 import sys
 from typing import NoReturn
 import unittest
@@ -29,6 +30,37 @@
 from ops.testing import Harness
 
 
+def encode(content: str):
+    return base64.b64encode(content.encode("ascii")).decode("utf-8")
+
+
+certificate_pem = encode(
+    """
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
+"""
+)
+
+
 class TestCharm(unittest.TestCase):
     """Prometheus Charm unit tests."""
 
@@ -50,6 +82,7 @@
             "collector_interval": 30,
             "evaluator_interval": 30,
             "keystone_enabled": True,
+            "certificates": f"cert1:{certificate_pem}",
         }
         self.harness.update_config(self.config)
 
diff --git a/installers/charm/nbi/requirements.txt b/installers/charm/nbi/requirements.txt
index f10a199..1a8928c 100644
--- a/installers/charm/nbi/requirements.txt
+++ b/installers/charm/nbi/requirements.txt
@@ -19,4 +19,4 @@
 # osm-charmers@lists.launchpad.net
 ##
 
-git+https://github.com/davigar15/ops-lib-charmed-osm/@e7f26cd29b322e175a23cadbe4546b7f2bbf111c
\ No newline at end of file
+git+https://github.com/charmed-osm/ops-lib-charmed-osm/@master
\ No newline at end of file
diff --git a/installers/charm/nbi/tests/__init__.py b/installers/charm/nbi/tests/__init__.py
index ee5553b..446d5ce 100644
--- a/installers/charm/nbi/tests/__init__.py
+++ b/installers/charm/nbi/tests/__init__.py
@@ -24,9 +24,17 @@
 
 import sys
 
+
 import mock
 
+
+class OCIImageResourceErrorMock(Exception):
+    pass
+
+
 sys.path.append("src")
 
 oci_image = mock.MagicMock()
+oci_image.OCIImageResourceError = OCIImageResourceErrorMock
 sys.modules["oci_image"] = oci_image
+sys.modules["oci_image"].OCIImageResource().fetch.return_value = {}
diff --git a/installers/charm/ng-ui/requirements.txt b/installers/charm/ng-ui/requirements.txt
index 2eaba28..10ade5d 100644
--- a/installers/charm/ng-ui/requirements.txt
+++ b/installers/charm/ng-ui/requirements.txt
@@ -20,4 +20,4 @@
 ##
 
 pydantic  # TODO: remove it
-git+https://github.com/davigar15/ops-lib-charmed-osm/@e7f26cd29b322e175a23cadbe4546b7f2bbf111c
\ No newline at end of file
+git+https://github.com/charmed-osm/ops-lib-charmed-osm/@master
\ No newline at end of file
diff --git a/installers/charm/ng-ui/tests/__init__.py b/installers/charm/ng-ui/tests/__init__.py
index ca37e3b..446d5ce 100644
--- a/installers/charm/ng-ui/tests/__init__.py
+++ b/installers/charm/ng-ui/tests/__init__.py
@@ -27,7 +27,14 @@
 
 import mock
 
+
+class OCIImageResourceErrorMock(Exception):
+    pass
+
+
 sys.path.append("src")
 
 oci_image = mock.MagicMock()
+oci_image.OCIImageResourceError = OCIImageResourceErrorMock
 sys.modules["oci_image"] = oci_image
+sys.modules["oci_image"].OCIImageResource().fetch.return_value = {}
diff --git a/installers/charm/pla/requirements.txt b/installers/charm/pla/requirements.txt
index f10a199..1a8928c 100644
--- a/installers/charm/pla/requirements.txt
+++ b/installers/charm/pla/requirements.txt
@@ -19,4 +19,4 @@
 # osm-charmers@lists.launchpad.net
 ##
 
-git+https://github.com/davigar15/ops-lib-charmed-osm/@e7f26cd29b322e175a23cadbe4546b7f2bbf111c
\ No newline at end of file
+git+https://github.com/charmed-osm/ops-lib-charmed-osm/@master
\ No newline at end of file
diff --git a/installers/charm/pla/tests/__init__.py b/installers/charm/pla/tests/__init__.py
index ca37e3b..446d5ce 100644
--- a/installers/charm/pla/tests/__init__.py
+++ b/installers/charm/pla/tests/__init__.py
@@ -27,7 +27,14 @@
 
 import mock
 
+
+class OCIImageResourceErrorMock(Exception):
+    pass
+
+
 sys.path.append("src")
 
 oci_image = mock.MagicMock()
+oci_image.OCIImageResourceError = OCIImageResourceErrorMock
 sys.modules["oci_image"] = oci_image
+sys.modules["oci_image"].OCIImageResource().fetch.return_value = {}
diff --git a/installers/charm/pol/requirements.txt b/installers/charm/pol/requirements.txt
index f10a199..1a8928c 100644
--- a/installers/charm/pol/requirements.txt
+++ b/installers/charm/pol/requirements.txt
@@ -19,4 +19,4 @@
 # osm-charmers@lists.launchpad.net
 ##
 
-git+https://github.com/davigar15/ops-lib-charmed-osm/@e7f26cd29b322e175a23cadbe4546b7f2bbf111c
\ No newline at end of file
+git+https://github.com/charmed-osm/ops-lib-charmed-osm/@master
\ No newline at end of file
diff --git a/installers/charm/pol/tests/__init__.py b/installers/charm/pol/tests/__init__.py
index ca37e3b..446d5ce 100644
--- a/installers/charm/pol/tests/__init__.py
+++ b/installers/charm/pol/tests/__init__.py
@@ -27,7 +27,14 @@
 
 import mock
 
+
+class OCIImageResourceErrorMock(Exception):
+    pass
+
+
 sys.path.append("src")
 
 oci_image = mock.MagicMock()
+oci_image.OCIImageResourceError = OCIImageResourceErrorMock
 sys.modules["oci_image"] = oci_image
+sys.modules["oci_image"].OCIImageResource().fetch.return_value = {}
diff --git a/installers/charm/prometheus/requirements.txt b/installers/charm/prometheus/requirements.txt
index f10a199..1a8928c 100644
--- a/installers/charm/prometheus/requirements.txt
+++ b/installers/charm/prometheus/requirements.txt
@@ -19,4 +19,4 @@
 # osm-charmers@lists.launchpad.net
 ##
 
-git+https://github.com/davigar15/ops-lib-charmed-osm/@e7f26cd29b322e175a23cadbe4546b7f2bbf111c
\ No newline at end of file
+git+https://github.com/charmed-osm/ops-lib-charmed-osm/@master
\ No newline at end of file
diff --git a/installers/charm/prometheus/tests/__init__.py b/installers/charm/prometheus/tests/__init__.py
index ca37e3b..446d5ce 100644
--- a/installers/charm/prometheus/tests/__init__.py
+++ b/installers/charm/prometheus/tests/__init__.py
@@ -27,7 +27,14 @@
 
 import mock
 
+
+class OCIImageResourceErrorMock(Exception):
+    pass
+
+
 sys.path.append("src")
 
 oci_image = mock.MagicMock()
+oci_image.OCIImageResourceError = OCIImageResourceErrorMock
 sys.modules["oci_image"] = oci_image
+sys.modules["oci_image"].OCIImageResource().fetch.return_value = {}
diff --git a/installers/charm/ro/config.yaml b/installers/charm/ro/config.yaml
index af61a10..bb667d7 100644
--- a/installers/charm/ro/config.yaml
+++ b/installers/charm/ro/config.yaml
@@ -44,3 +44,11 @@
     type: string
     description: "Openmano Tenant"
     default: "osm"
+  certificates:
+    type: string
+    description: |
+      comma-separated list of <name>:<content> certificates.
+      Where:
+        name: name of the file for the certificate
+        content: base64 content of the certificate
+      The path for the files is /certs.
diff --git a/installers/charm/ro/requirements.txt b/installers/charm/ro/requirements.txt
index f10a199..1a8928c 100644
--- a/installers/charm/ro/requirements.txt
+++ b/installers/charm/ro/requirements.txt
@@ -19,4 +19,4 @@
 # osm-charmers@lists.launchpad.net
 ##
 
-git+https://github.com/davigar15/ops-lib-charmed-osm/@e7f26cd29b322e175a23cadbe4546b7f2bbf111c
\ No newline at end of file
+git+https://github.com/charmed-osm/ops-lib-charmed-osm/@master
\ No newline at end of file
diff --git a/installers/charm/ro/src/charm.py b/installers/charm/ro/src/charm.py
index 6851600..5b40c16 100755
--- a/installers/charm/ro/src/charm.py
+++ b/installers/charm/ro/src/charm.py
@@ -22,26 +22,43 @@
 
 # pylint: disable=E0213
 
+import base64
 import logging
-from typing import NoReturn
+from typing import NoReturn, Optional
 
 from ops.main import main
 from opslib.osm.charm import CharmedOsmBase, RelationsMissing
 from opslib.osm.interfaces.kafka import KafkaClient
 from opslib.osm.interfaces.mongo import MongoClient
 from opslib.osm.interfaces.mysql import MysqlClient
-from opslib.osm.pod import (
-    ContainerV3Builder,
-    PodSpecV3Builder,
-)
+from opslib.osm.pod import ContainerV3Builder, FilesV3Builder, PodSpecV3Builder
 from opslib.osm.validator import ModelValidator, validator
 
-
 logger = logging.getLogger(__name__)
 
 PORT = 9090
 
 
+def _check_certificate_data(name: str, content: str):
+    if not name or not content:
+        raise ValueError("certificate name and content must be a non-empty string")
+
+
+def _extract_certificates(certs_config: str):
+    certificates = {}
+    if certs_config:
+        cert_list = certs_config.split(",")
+        for cert in cert_list:
+            name, content = cert.split(":")
+            _check_certificate_data(name, content)
+            certificates[name] = content
+    return certificates
+
+
+def decode(content: str):
+    return base64.b64decode(content.encode("utf-8")).decode("utf-8")
+
+
 class ConfigModel(ModelValidator):
     enable_ng_ro: bool
     database_commonkey: str
@@ -49,6 +66,7 @@
     vim_database: str
     ro_database: str
     openmano_tenant: str
+    certificates: Optional[str]
 
     @validator("log_level")
     def validate_log_level(cls, v):
@@ -56,6 +74,16 @@
             raise ValueError("value must be INFO or DEBUG")
         return v
 
+    @validator("certificates")
+    def validate_certificates(cls, v):
+        # Raises an exception if it cannot extract the certificates
+        _extract_certificates(v)
+        return v
+
+    @property
+    def certificates_dict(cls):
+        return _extract_certificates(cls.certificates) if cls.certificates else {}
+
 
 class RoCharm(CharmedOsmBase):
     """GrafanaCharm Charm."""
@@ -106,6 +134,15 @@
         if missing_relations:
             raise RelationsMissing(missing_relations)
 
+    def _build_cert_files(
+        self,
+        config: ConfigModel,
+    ):
+        cert_files_builder = FilesV3Builder()
+        for name, content in config.certificates_dict.items():
+            cert_files_builder.add_file(name, decode(content), mode=0o600)
+        return cert_files_builder.build()
+
     def build_pod_spec(self, image_info):
         # Validate config
         config = ConfigModel(**dict(self.config))
@@ -115,6 +152,9 @@
         pod_spec_builder = PodSpecV3Builder()
         # Build Container
         container_builder = ContainerV3Builder(self.app.name, image_info)
+        certs_files = self._build_cert_files(config)
+        if certs_files:
+            container_builder.add_volume_config("certs", "/certs", certs_files)
         container_builder.add_port(name=self.app.name, port=PORT)
         container_builder.add_http_readiness_probe(
             "/ro/" if config.enable_ng_ro else "/openmano/tenants",
diff --git a/installers/charm/ro/tests/__init__.py b/installers/charm/ro/tests/__init__.py
index ca37e3b..446d5ce 100644
--- a/installers/charm/ro/tests/__init__.py
+++ b/installers/charm/ro/tests/__init__.py
@@ -27,7 +27,14 @@
 
 import mock
 
+
+class OCIImageResourceErrorMock(Exception):
+    pass
+
+
 sys.path.append("src")
 
 oci_image = mock.MagicMock()
+oci_image.OCIImageResourceError = OCIImageResourceErrorMock
 sys.modules["oci_image"] = oci_image
+sys.modules["oci_image"].OCIImageResource().fetch.return_value = {}
diff --git a/installers/charm/ro/tests/test_charm.py b/installers/charm/ro/tests/test_charm.py
index 4610b25..9cced45 100644
--- a/installers/charm/ro/tests/test_charm.py
+++ b/installers/charm/ro/tests/test_charm.py
@@ -20,7 +20,7 @@
 # osm-charmers@lists.launchpad.net
 ##
 
-import sys
+import base64
 from typing import NoReturn
 import unittest
 
@@ -29,12 +29,42 @@
 from ops.testing import Harness
 
 
+def encode(content: str):
+    return base64.b64encode(content.encode("ascii")).decode("utf-8")
+
+
+certificate_pem = encode(
+    """
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
+"""
+)
+
+
 class TestCharm(unittest.TestCase):
     """Prometheus Charm unit tests."""
 
     def setUp(self) -> NoReturn:
         """Test setup"""
-        self.image_info = sys.modules["oci_image"].OCIImageResource().fetch()
         self.harness = Harness(RoCharm)
         self.harness.set_leader(is_leader=True)
         self.harness.begin()
@@ -45,6 +75,7 @@
             "vim_database": "db_name",
             "ro_database": "ro_db_name",
             "openmano_tenant": "mano",
+            "certificates": f"cert1:{certificate_pem}",
         }
         self.harness.update_config(self.config)