Update Python version and dependencies

- Update to python 3.9
- Update dependencies
- Add Dockerfile
- Update documentation

Co-authored-by: Harri Hirvonsalo <[email protected]>

Dockerfile

@@ -0,0 +1,16 @@
+FROM rockylinux:9
+# eudat-docker.artifactory.ci.csc.fi/
+
+LABEL maintainer Giacomo Furlan <[email protected]>
+LABEL description="Image to test nagios plugin on eudat b2share instances."
+
+RUN dnf update -y && \
+    dnf install -y python3.9 && \
+    dnf install -y python3.9-pip
+
+WORKDIR /root
+
+ADD check_b2share.py check_b2share.py
+ADD requirements.txt requirements.txt
+
+RUN pip3 install -r requirements.txt

README.md

@@ -1,23 +1,21 @@
 # B2SHARE Monitoring probe for ARGO
 
 ## Setting up environment
-This probe has been written for Python 3 and tested with Python 3.5.2
-You may need to install (using e.g. `pip`) the following Python modules as 
+This probe has been written for Python 3 and tested with Python 3.9
+You may need to install (using e.g. `pip3`) the following Python modules as
 they do not come with original distribution:
 - requests
 - jsonschema
-- validators
-- enum (in case lower than Python 3.4)
 
 ## Overview
-The B2SHARE probe for ARGO does the following interaction 
+The B2SHARE probe for ARGO does the following interaction
 with B2SHARE REST API:
 
 - Search for records
 - Fetch record's metadata from search results
 - Fetch record's metadata schema
 - Validate record's metadata agains record's metadata schema
-- If a record with file is available, check that a file 
+- If a record with file is available, check that a file
   should be able to be downloaded (HTTP HEAD request)
 
 B2SHARE ARGO probe:
@@ -27,6 +25,30 @@ B2SHARE ARGO probe:
 ## Pre-requisites:
 - None
 
+
+## Package dependences
+
+Python modules "requests" and "jsonschema" have the following dependencies:
+
+```python
+requests==2.31.0
+├── certifi [required: >=2017.4.17, installed: 2024.2.2]
+├── charset-normalizer [required: >=2,<4, installed: 3.3.2]
+├── idna [required: >=2.5,<4, installed: 3.6]
+└── urllib3 [required: >=1.21.1,<3, installed: 2.2.1]
+
+
+jsonschema==4.21.1
+├── attrs [required: >=22.2.0, installed: 23.2.0]
+├── jsonschema-specifications [required: >=2023.03.6, installed: 2023.12.1]
+│   └── referencing [required: >=0.31.0, installed: 0.34.0]
+│       ├── attrs [required: >=22.2.0, installed: 23.2.0]
+│       └── rpds-py [required: >=0.7.0, installed: 0.18.0]
+├── referencing [required: >=0.28.4, installed: 0.34.0]
+│   ├── attrs [required: >=22.2.0, installed: 23.2.0]
+│   └── rpds-py [required: >=0.7.0, installed: 0.18.0]
+└── rpds-py [required: >=0.7.1, installed: 0.18.0]
+```
 ## How it works?
 
 ```
@@ -50,7 +72,7 @@ optional arguments:
 
 Example
 
-`$ python check_b2share.py -u https://b2share.eudat.eu:443 -t 15 -vv`
+`$ python3 check_b2share.py -u https://b2share.eudat.eu:443 -t 15 -vv`
 
 ```
 TLS certificate verification: OFF
@@ -70,6 +92,16 @@ Fetching first file of the bucket.
 ---------------------------
 OK, records, metadata schemas and files are accessible.
 ```
+# How to run the code in a conatiner
+
+In the root folder of the project, build the container:
+```bash
+docker build -t <name_of_the_image>:<tag_of_the_image> .
+```
+Then run the code in the container
+```bash
+docker run -it --rm <name_of_the_image>:<tag_of_the_image> python3 check_b2share.py -u https://b2share.eudat.eu:443 -t 15 -vv
+```
 
 ## Credits
 This code is based on [EUDAT-B2ACCESS/b2access-probe](https://github.com/EUDAT-B2ACCESS/b2access-probe)

check_b2share.py

@@ -24,9 +24,8 @@
 
 import jsonschema
 import requests
-import requests.packages.urllib3
-import validators
-from requests.exceptions import HTTPError
+from requests.models import PreparedRequest
+from requests.exceptions import HTTPError, MissingSchema
 
 
 class Verbosity(IntEnum):
@@ -64,6 +63,20 @@ def get_dict_from_url(url, verify_tls_cert=False, verbosity=False):
 
     return r.json()
 
+def validate_url(url):
+    """Validate if a string is an url.
+    Based on https://stackoverflow.com/a/34266413
+    (python-validators package was not available as rpm package in Rocky Linux 9)
+    """
+    prepared_request = PreparedRequest()
+    try:
+        prepared_request.prepare_url(url, None)
+        if not prepared_request.url:
+            return False
+    except MissingSchema:
+        return False
+    return True
+
 
 if __name__ == '__main__':
     parser = argparse.ArgumentParser(description='B2SHARE Nagios probe')
@@ -101,7 +114,7 @@ def get_dict_from_url(url, verify_tls_cert=False, verbosity=False):
     verbosity = Verbosity(param.verbose)
 
     # Validate parameters
-    if not validators.url(param.url):
+    if not validate_url(param.url):
         raise SyntaxError(
             'CRITICAL: Invalid URL syntax {0}'.format(
                 param.url))

nagios-plugins-eudat-b2share.spec

@@ -14,7 +14,7 @@
 #   limitations under the License.
 
 Name:		nagios-plugins-eudat-b2share
-Version:	0.1.1
+Version:	0.2.1
 Release:	1%{?dist}
 Summary:	Nagios B2SHARE probe
 License:	Apache License, Version 2.0
@@ -26,11 +26,9 @@ BuildRoot:	%{_tmppath}/%{name}-%{version}
 
 AutoReqProv: no
 
-Requires:	python
-Requires:	python-argparse
-Requires:	python-requests
-Requires:	python-jsonschema
-Requires:	python-validators
+Requires:	python3
+Requires:	python3-requests
+Requires:	python3-jsonschema
 
 
 %description
@@ -40,7 +38,7 @@ Nagios probe to check functionality of B2SHARE Service
 %setup -q
 
 %define _unpackaged_files_terminate_build 0
-%define probe_namespace eudat-b2share 
+%define probe_namespace eudat-b2share
 
 %install
 
@@ -55,6 +53,10 @@ install -m 755 check_b2share.py %{buildroot}/%{_libexecdir}/argo-monitoring/prob
 %attr(0755,root,root) /%{_libexecdir}/argo-monitoring/probes/%{probe_namespace}/check_b2share.py
 
 %changelog
+* Fri Apr 05 2024 Giacomo Furlan   <[email protected]> - 0.2.1
+- Update python to 3.9
+- Update requirements and dependencies
+- Remove validator dependency
 * Mon Sep 02 2019 Harri Hirvonsalo   <[email protected]> - 0.1.1-1
 - Improved error handling to address false positive alerts.
 * Wed Dec 05 2018 Harri Hirvonsalo   <[email protected]> - 0.1-1

requirements.txt

@@ -1,7 +1,7 @@
 #
 # This file is part of B2SHARE Nagios monitoring plugin.
 #
-# Copyright (C) 2018 Harri Hirvonsalo
+# Copyright (C) 2024 Harri Hirvonsalo
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -15,14 +15,5 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-attrs==19.1.0           # from jsonschema
-certifi==2019.6.16      # from requests
-chardet==3.0.4          # from requests
-decorator==4.4.0        # from validators
-idna==2.8               # from requests
-jsonschema==3.0.2
-pyrsistent==0.15.4      # from jsonschema
-requests==2.22.0
-six==1.12.0             # from validators, jsonschema
-urllib3==1.25.3         # from requests 
-validators==0.14.0
+jsonschema==4.21.1
+requests==2.31.0