initial

.gitignore

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+build
+.DS_Store
+tsm
+src/tsm/tsm

.woodpecker.yml

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+steps:
+  build:
+    image: golang:1.22.5-alpine3.20
+    commands:
+      - GOPATH=/woodpecker/go
+      - cd src/tsm
+      - go mod tidy
+      - go build -a -installsuffix nocgo -o tsm tsm.go
+      - cp tsm ../..
+    when:
+      - event: [push, tag]
+
+  scan:
+    image: quay.io/wollud1969/woodpecker-helper:0.5.1
+    environment:
+      TRIVY_TOKEN:
+        from_secret: trivy_token
+      TRIVY_URL:
+        from_secret: trivy_url
+      DTRACK_API_KEY:
+        from_secret: dtrack_api_key
+      DTRACK_API_URL:
+        from_secret: dtrack_api_url
+    commands:
+      - export GOPATH=/woodpecker/go   # the export is required, otherwise trivy will not consider the variable
+      - HOME=/home/`id -nu`
+      - TAG="${CI_COMMIT_TAG:-$CI_COMMIT_SHA}"
+      - |
+        trivy fs \
+              --server $TRIVY_URL \
+              --token $TRIVY_TOKEN \
+              --format cyclonedx \
+              --scanners license \
+              --output /tmp/sbom.xml \
+              .        
+      - cat /tmp/sbom.xml
+      - |
+        curl -X "POST" \
+             -H "Content-Type: multipart/form-data" \
+             -H "X-Api-Key: $DTRACK_API_KEY" \
+             -F "autoCreate=true" \
+             -F "projectName=$CI_REPO" \
+             -F "projectVersion=$TAG" \
+             -F "bom=@/tmp/sbom.xml"\
+             "$DTRACK_API_URL/api/v1/bom"        
+    when:
+      - event: [push, tag]
+
+  dockerize:
+    image: plugins/kaniko
+    settings:
+      repo: ${FORGE_NAME}/${CI_REPO}
+      registry: 
+        from_secret: container_registry
+      tags: latest,${CI_COMMIT_SHA},${CI_COMMIT_TAG}
+      username: 
+        from_secret: container_registry_username
+      password: 
+        from_secret: container_registry_password
+      dockerfile: Dockerfile
+    when:
+      - event: [push, tag]
+
+  deploy:
+    image: quay.io/wollud1969/woodpecker-helper:0.5.1
+    environment:
+      KUBE_CONFIG_CONTENT:
+        from_secret: kube_config
+      ENCRYPTION_KEY:
+        from_secret: encryption_key
+      MD5_CHECKSUM:
+        from_secret: secrets_checksum
+    commands:
+      - export IMAGE_TAG=$CI_COMMIT_TAG
+      - printf "$KUBE_CONFIG_CONTENT" > /tmp/kubeconfig
+      - export KUBECONFIG=/tmp/kubeconfig
+      - ./deployment/deploy.sh
+    when:
+      - event: tag
+

Dockerfile

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+FROM scratch
+
+ENV TSM_MQTT_CONF ""
+
+COPY tsm ./
+ENTRYPOINT ["./tsm"]
+
+
+

LICENSE

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+MIT License
+
+Copyright (c) 2019 Daniel Chote
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+

README.md

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+# snmp-mqtt
+
+This project is directly derived from https://github.com/dchote/snmp-mqtt
+
+A simple go app that reads SNMP values and publishes it to the specified MQTT endpoint at the specified interval.
+
+In constrast to the original version, all configuration must be provided via an environment variable containing
+a JSON string. 
+
+The MQTT configuration is part of this JSON string.
+
+The topic has been moved to the MQTT configuration and there is now only one topic for all endpoints and variables.
+
+The published message on MQTT looks like this:
+
+```
+{"device":"172.16.3.1","label":"router","variables":{"lan-in":{"label":"lan-in","variable":".1.3.6.1.2.1.31.1.1.1.6.2","value":"979673705579"},"lan-out":{"label":"lan-out","variable":".1.3.6.1.2.1.31.1.1.1.10.2","value":"1813410276168"},"wan-in":{"label":"wan-in","variable":".1.3.6.1.2.1.31.1.1.1.6.4","value":"83591215399"},"wan-out":{"label":"wan-out","variable":".1.3.6.1.2.1.31.1.1.1.10.4","value":"83741895468"}}}
+```
+
+```
+export SNMP_MQTT_CONF=$(cat config.json)
+./smq
+```
+
+An example config.json file:
+```
+{
+  "mqtt": {
+    "broker": "mqtt://172.23.1.102:1883",
+    "tlsEnable": "false",
+    "topic": "snmp"
+  },
+  "interval": 10,
+  "snmpEndpoints": [
+    {
+      "endpoint": "172.16.3.1",
+      "label": "router",
+      "community": "public",
+      "oidTopics": [
+        {
+          "oid": ".1.3.6.1.2.1.31.1.1.1.6.4",
+          "label": "wan-in",
+          "diff": "true"
+        },
+        {
+          "oid": ".1.3.6.1.2.1.31.1.1.1.10.4",
+          "label": "wan-out",
+          "diff": "true"
+        },
+        {
+          "oid": ".1.3.6.1.2.1.31.1.1.1.6.2",
+          "label": "lan-in",
+          "diff": "true"
+        },
+        {
+          "oid": ".1.3.6.1.2.1.31.1.1.1.10.2",
+          "label": "lan-out",
+          "diff": "true"
+        }
+      ]
+    }
+  ]
+}
+```

deployment/config.json

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+{
+  "mqtt": {
+    "broker": "mqtt://emqx01-anonymous-cluster-internal.broker.svc.cluster.local:1883",
+    "tlsEnable": "false",
+    "topic": "tsm"
+  },
+  "interval": 10,
+  "servers": [
+    {
+      "name": "172.16.13.10",
+      "label": "david"
+    }
+  ]
+}

deployment/deploy-yml.tmpl

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: tsm-mqtt
+  namespace: homea
+  labels:
+    app: tsm-mqtt
+  annotations:
+    secret.reloader.stakater.com/reload: tsmsnmp-mqtt-conf
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: tsm-nmqtt
+  template:
+    metadata:
+      labels:
+        app: tsm-nmqtt
+    spec:
+      containers:
+        - name: tsm-nmqtt
+          image: %IMAGE%
+          envFrom:
+            - configMapRef:
+                name: tsm-mqtt-conf
+
+

deployment/deploy.sh

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+#!/bin/bash
+
+if [ "$IMAGE_TAG" == "" ]; then
+  echo "Make sure IMAGE_TAG is set"
+  exit 1
+fi
+
+
+IMAGE_NAME=gitea.hottis.de/wn/timeserver-monitoring
+NAMESPACE=homea
+DEPLOYMENT_DIR=$PWD/deployment
+CONFIG_FILE=config.json
+
+pushd $DEPLOYMENT_DIR > /dev/null
+
+kubectl create namespace $NAMESPACE \
+  --dry-run=client \
+  -o yaml | \
+  kubectl -f - apply
+
+kubectl create configmap tsm-mqtt-conf \
+  --from-literal=TSM_MQTT_CONF="`cat $CONFIG_FILE`" \
+  --dry-run=client \
+  -o yaml \
+  --save-config | \
+  kubectl apply -f - -n $NAMESPACE
+
+
+cat $DEPLOYMENT_DIR/deploy-yml.tmpl | \
+  sed -e 's,%IMAGE%,'$IMAGE_NAME':'$IMAGE_TAG','g | \
+  kubectl apply -f - -n $NAMESPACE
+
+popd > /dev/null
+

deployment/pushconfig.sh

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+#!/bin/bash
+
+
+kubectl create configmap tsm-mqtt-conf   --from-literal=SNMP_MQTT_CONF="`cat config.json`"   --dry-run=client   -o yaml   --save-config |   kubectl apply -f - -n homea