feat: adding support of python v3.13 and migrating from pysnmplib to lextudio's pysnmp v7.1.8

- Replaced pysnmplib with lextudio’s pysmp v7.1.8
- Replaced pysnmp-pyasn1 to lextudio's pyasn1
- Replaced pysnmp-pysmi to lextudio's pysmi
- Included pysnmpcrypto (maintained by lextudio's) for stronger crypto algorithms with pysnmp v6+
- Made SC4SNMP compatible with Python 3.13
- Updated SNMP walk implementation from bulkCmd to custom multi_bulk_walk_cmd
- Introduced deploymentUser in values.yaml to make the sc4snmp entirely compatible with lextudio's pysnmp.
- Added DEPLOYMENT_USER variable for Docker Compose deployment.
- Introduces multi_bulk_walk_cmd to walk multiple OID trees simultaneously with lexicographic mode control per varbind.
- Migrate auto-discovery feature to make compitable with lextuio's pysnmp and python 3.13
- Replace the thread-pool executor with semaphore asyncio for concurrency control

Author: gmaiyani-crest

.github/workflows/ci-docker-deployment.yaml

@@ -14,7 +14,7 @@ jobs:
     strategy:
       matrix:
         python-version:
-          - 3.10
+          - 3.13
     steps:
       - name: Check out code
         uses: actions/checkout@v4

.github/workflows/ci-main.yaml

@@ -70,7 +70,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: actions/setup-python@v5
         with:
-          python-version: "3.10"
+          python-version: "3.13"
       - uses: pre-commit/[email protected]
 
   trivy-scan:
@@ -102,7 +102,7 @@ jobs:
     strategy:
       matrix:
         python-version:
-          - "3.10"
+          - "3.13"
     steps:
       - uses: actions/checkout@v4
       - name: Setup python
@@ -197,7 +197,7 @@ jobs:
       - name: Setup python
         uses: actions/setup-python@v5
         with:
-          python-version: "3.10"
+          python-version: "3.13"
       - name: Install docker compose
         run: |
           # Add Docker's official GPG key:

.github/workflows/ci-ui-tests.yaml

@@ -64,7 +64,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v5
         with:
-          python-version: "3.10"
+          python-version: "3.13"
 
       - name: remove not used docker images
         run: |  

.github/workflows/mike.yaml

@@ -40,7 +40,7 @@ jobs:
           token: "${{ secrets.PAT_CLATOOL }}"
       - uses: actions/setup-python@v5
         with:
-          python-version: "3.10"
+          python-version: "3.13"
       - name: Upload Docs
         run: |
           sudo apt update

.github/workflows/offline-installation.yaml

@@ -14,7 +14,7 @@ jobs:
     strategy:
       matrix:
         python-version:
-          - "3.10"
+          - "3.13"
     steps:
       - name: Check out code
         uses: actions/checkout@v4

CHANGELOG.md

@@ -9,6 +9,7 @@
   - Implemented automatic data migration from Bitnami deployments (PVC reuse)
   - Enabled AOF persistence by default for data durability
 - add CounterBasedGauge64 and ZeroBasedCounter64 as metrics types
+- add SNMP-enabled device discovery feature
 
 ### Fixes
 - fix problem with service rendering when `traps.service.usemetallb` is set to false

Dockerfile

@@ -1,10 +1,11 @@
-FROM python:3.10-alpine AS base
+FROM python:3.13-alpine AS base
 
 ENV PYTHONFAULTHANDLER=1 \
     PYTHONHASHSEED=random \
     PYTHONUNBUFFERED=1
 RUN apk add -U git sqlite-dev
 RUN pip install --upgrade setuptools pip
+RUN apk add --no-cache nmap
 RUN mkdir /app
 WORKDIR /app
 

charts/splunk-connect-for-snmp/Chart.lock

@@ -5,5 +5,5 @@ dependencies:
 - name: mibserver
   repository: https://pysnmp.github.io/mibs/charts/
   version: 1.15.25
-digest: sha256:747fcedec83bf0d80600166a021b35436d8d2ea877b60e9a43044ed2140cf1c5
-generated: "2025-10-13T12:15:04.255986+02:00"
+digest: sha256:204f5bac63adfed27167a2d1f76682400e98ff9dd39bb319357633de25f91525
+generated: "2025-11-06T09:07:30.615857862Z"

charts/splunk-connect-for-snmp/templates/NOTES.txt

@@ -1,2 +1,3 @@
 Default walk no longer calls full oid tree, instead it is collecting only 'SNMPv2-MIB'.
-If you want to call full oid for the devices, you have to set enableFullWalk flag to true.
+If you want to call full oid for the devices, you have to set enableFullWalk flag to true.
+If the discovery feature is enabled, the time required may increase depending on the number of devices in the specified subnet.

charts/splunk-connect-for-snmp/templates/_helpers.tpl

@@ -96,6 +96,17 @@ Whether enable polling
 {{- end -}}
 {{- end }}
 
+{{/*
+Whether enable discovery
+*/}}
+{{- define "splunk-connect-for-snmp.discovery.enable" -}}
+{{- if .Values.discovery.enabled }}
+{{- printf "true" }}
+{{- else }}
+{{- printf "false" }}
+{{- end -}}
+{{- end }}
+
 {{- /*
 Generate Redis environment variables for application pods
 */ -}}