commit 0a1511bcbca1eaceb69b562a90121e9141019209 Author: Simon Rieger Date: Mon Dec 9 18:14:45 2024 +0100 first commit diff --git a/Dockerfile b/Dockerfile new file mode 100644 index 0000000..efa7db6 --- /dev/null +++ b/Dockerfile @@ -0,0 +1,32 @@ +# Use the official Golang image to build the application +FROM golang:1.23 AS builder + +# Set the working directory +WORKDIR /app + +# Copy the Go modules manifests +COPY go.mod go.sum ./ + +# Download Go modules +RUN go mod download + +# Copy the source code +COPY . . + +# Build the Go application +RUN CGO_ENABLED=0 GOOS=linux go build -o main . + +# Use a minimal image for the final container +FROM alpine:latest + +# Set the working directory +WORKDIR /root/ + +# Copy the compiled Go binary from the builder stage +COPY --from=builder /app/main . + +# Expose the port the application runs on +EXPOSE 8080 + +# Command to run the executable +CMD ["./main"] diff --git a/README.md b/README.md new file mode 100644 index 0000000..d16e1ca --- /dev/null +++ b/README.md @@ -0,0 +1,56 @@ +# Docker Network Graph Go + +Dieses Projekt erstellt eine visuelle Darstellung von Docker-Netzwerken und Containern. + +## Voraussetzungen + +- Linux-System (vorzugsweise ARM64-Architektur) +- Docker +- Internetverbindung + +## Installation und Einrichtung + +1. Go 1.23.4 herunterladen und installieren: + +```bash +wget https://go.dev/dl/go1.23.4.linux-arm64.tar.gz +sudo tar -C /usr/local -xzf go1.23.4.linux-arm64.tar.gz +export PATH=$PATH:/usr/local/go/bin +``` + +2. Überprüfen Sie die Go-Installation: + +```bash +go version +``` + +3. Klonen Sie das Repository: + +```bash +git clone https://code.brothertec.eu/simono41/docker-network-graph-go.git +cd docker-network-graph-go +``` + +4. Bauen Sie das Docker-Image: + +```bash +docker build -t code.brothertec.eu/simono41/docker-network-graph-go:latest . +``` + +## Verwendung + +Führen Sie den Container aus, um die Docker-Netzwerkgrafik zu generieren: + +```bash +docker run --rm -v /var/run/docker.sock:/var/run/docker.sock code.brothertec.eu/simono41/docker-network-graph-go:latest +docker run --rm -v /var/run/docker.sock:/var/run/docker.sock code.brothertec.eu/simono41/docker-network-graph:latest | dot -Tsvg -o /opt/containers/picture-uploader/uploads/network.svg +``` + +## Hinweise + +- Stellen Sie sicher, dass Sie die neueste Version von Docker installiert haben. +- Für die Ausführung des Containers sind Root-Rechte oder Mitgliedschaft in der Docker-Gruppe erforderlich. +- Die generierte Grafik wird standardmäßig auf der Konsole ausgegeben. Verwenden Sie Umleitungen, um die Ausgabe in eine Datei zu speichern. + +Citations: +[1] https://go.dev/dl/go1.23.4.linux-arm64.tar.gz diff --git a/go.mod b/go.mod new file mode 100644 index 0000000..70affc3 --- /dev/null +++ b/go.mod @@ -0,0 +1,43 @@ +module docker-network-graph-go + +go 1.23.4 + +require ( + github.com/docker/docker v27.3.1+incompatible + github.com/goccy/go-graphviz v0.2.9 + golang.org/x/net v0.32.0 +) + +require ( + github.com/Microsoft/go-winio v0.4.14 // indirect + github.com/containerd/log v0.1.0 // indirect + github.com/disintegration/imaging v1.6.2 // indirect + github.com/distribution/reference v0.6.0 // indirect + github.com/docker/go-connections v0.5.0 // indirect + github.com/docker/go-units v0.5.0 // indirect + github.com/felixge/httpsnoop v1.0.4 // indirect + github.com/flopp/go-findfont v0.1.0 // indirect + github.com/fogleman/gg v1.3.0 // indirect + github.com/go-logr/logr v1.4.2 // indirect + github.com/go-logr/stdr v1.2.2 // indirect + github.com/gogo/protobuf v1.3.2 // indirect + github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0 // indirect + github.com/moby/docker-image-spec v1.3.1 // indirect + github.com/moby/term v0.5.0 // indirect + github.com/morikuni/aec v1.0.0 // indirect + github.com/opencontainers/go-digest v1.0.0 // indirect + github.com/opencontainers/image-spec v1.1.0 // indirect + github.com/pkg/errors v0.9.1 // indirect + github.com/tetratelabs/wazero v1.8.1 // indirect + go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.57.0 // indirect + go.opentelemetry.io/otel v1.32.0 // indirect + go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.32.0 // indirect + go.opentelemetry.io/otel/metric v1.32.0 // indirect + go.opentelemetry.io/otel/sdk v1.32.0 // indirect + go.opentelemetry.io/otel/trace v1.32.0 // indirect + golang.org/x/image v0.21.0 // indirect + golang.org/x/sys v0.28.0 // indirect + golang.org/x/text v0.21.0 // indirect + golang.org/x/time v0.8.0 // indirect + gotest.tools/v3 v3.5.1 // indirect +) diff --git a/go.sum b/go.sum new file mode 100644 index 0000000..2e2580f --- /dev/null +++ b/go.sum @@ -0,0 +1,142 @@ +github.com/Azure/go-ansiterm v0.0.0-20210617225240-d185dfc1b5a1 h1:UQHMgLO+TxOElx5B5HZ4hJQsoJ/PvUvKRhJHDQXO8P8= +github.com/Azure/go-ansiterm v0.0.0-20210617225240-d185dfc1b5a1/go.mod h1:xomTg63KZ2rFqZQzSB4Vz2SUXa1BpHTVz9L5PTmPC4E= +github.com/Microsoft/go-winio v0.4.14 h1:+hMXMk01us9KgxGb7ftKQt2Xpf5hH/yky+TDA+qxleU= +github.com/Microsoft/go-winio v0.4.14/go.mod h1:qXqCSQ3Xa7+6tgxaGTIe4Kpcdsi+P8jBhyzoq1bpyYA= +github.com/cenkalti/backoff/v4 v4.3.0 h1:MyRJ/UdXutAwSAT+s3wNd7MfTIcy71VQueUuFK343L8= +github.com/cenkalti/backoff/v4 v4.3.0/go.mod h1:Y3VNntkOUPxTVeUxJ/G5vcM//AlwfmyYozVcomhLiZE= +github.com/containerd/log v0.1.0 h1:TCJt7ioM2cr/tfR8GPbGf9/VRAX8D2B4PjzCpfX540I= +github.com/containerd/log v0.1.0/go.mod h1:VRRf09a7mHDIRezVKTRCrOq78v577GXq3bSa3EhrzVo= +github.com/corona10/goimagehash v1.1.0 h1:teNMX/1e+Wn/AYSbLHX8mj+mF9r60R1kBeqE9MkoYwI= +github.com/corona10/goimagehash v1.1.0/go.mod h1:VkvE0mLn84L4aF8vCb6mafVajEb6QYMHl2ZJLn0mOGI= +github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c= +github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= +github.com/disintegration/imaging v1.6.2 h1:w1LecBlG2Lnp8B3jk5zSuNqd7b4DXhcjwek1ei82L+c= +github.com/disintegration/imaging v1.6.2/go.mod h1:44/5580QXChDfwIclfc/PCwrr44amcmDAg8hxG0Ewe4= +github.com/distribution/reference v0.6.0 h1:0IXCQ5g4/QMHHkarYzh5l+u8T3t73zM5QvfrDyIgxBk= +github.com/distribution/reference v0.6.0/go.mod h1:BbU0aIcezP1/5jX/8MP0YiH4SdvB5Y4f/wlDRiLyi3E= +github.com/docker/docker v27.3.1+incompatible h1:KttF0XoteNTicmUtBO0L2tP+J7FGRFTjaEF4k6WdhfI= +github.com/docker/docker v27.3.1+incompatible/go.mod h1:eEKB0N0r5NX/I1kEveEz05bcu8tLC/8azJZsviup8Sk= +github.com/docker/go-connections v0.5.0 h1:USnMq7hx7gwdVZq1L49hLXaFtUdTADjXGp+uj1Br63c= +github.com/docker/go-connections v0.5.0/go.mod h1:ov60Kzw0kKElRwhNs9UlUHAE/F9Fe6GLaXnqyDdmEXc= +github.com/docker/go-units v0.5.0 h1:69rxXcBk27SvSaaxTtLh/8llcHD8vYHT7WSdRZ/jvr4= +github.com/docker/go-units v0.5.0/go.mod h1:fgPhTUdO+D/Jk86RDLlptpiXQzgHJF7gydDDbaIK4Dk= +github.com/felixge/httpsnoop v1.0.4 h1:NFTV2Zj1bL4mc9sqWACXbQFVBBg2W3GPvqp8/ESS2Wg= +github.com/felixge/httpsnoop v1.0.4/go.mod h1:m8KPJKqk1gH5J9DgRY2ASl2lWCfGKXixSwevea8zH2U= +github.com/flopp/go-findfont v0.1.0 h1:lPn0BymDUtJo+ZkV01VS3661HL6F4qFlkhcJN55u6mU= +github.com/flopp/go-findfont v0.1.0/go.mod h1:wKKxRDjD024Rh7VMwoU90i6ikQRCr+JTHB5n4Ejkqvw= +github.com/fogleman/gg v1.3.0 h1:/7zJX8F6AaYQc57WQCyN9cAIz+4bCJGO9B+dyW29am8= +github.com/fogleman/gg v1.3.0/go.mod h1:R/bRT+9gY/C5z7JzPU0zXsXHKM4/ayA+zqcVNZzPa1k= +github.com/go-logr/logr v1.2.2/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A= +github.com/go-logr/logr v1.4.2 h1:6pFjapn8bFcIbiKo3XT4j/BhANplGihG6tvd+8rYgrY= +github.com/go-logr/logr v1.4.2/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY= +github.com/go-logr/stdr v1.2.2 h1:hSWxHoqTgW2S2qGc0LTAI563KZ5YKYRhT3MFKZMbjag= +github.com/go-logr/stdr v1.2.2/go.mod h1:mMo/vtBO5dYbehREoey6XUKy/eSumjCCveDpRre4VKE= +github.com/goccy/go-graphviz v0.2.9 h1:4yD2MIMpxNt+sOEARDh5jTE2S/jeAKi92w72B83mWGg= +github.com/goccy/go-graphviz v0.2.9/go.mod h1:hssjl/qbvUXGmloY81BwXt2nqoApKo7DFgDj5dLJGb8= +github.com/gogo/protobuf v1.3.2 h1:Ov1cvc58UF3b5XjBnZv7+opcTcQFZebYjWzi34vdm4Q= +github.com/gogo/protobuf v1.3.2/go.mod h1:P1XiOD3dCwIKUDQYPy72D8LYyHL2YPYrpS2s69NZV8Q= +github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0 h1:DACJavvAHhabrF08vX0COfcOBJRhZ8lUbR+ZWIs0Y5g= +github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0/go.mod h1:E/TSTwGwJL78qG/PmXZO1EjYhfJinVAhrmmHX6Z8B9k= +github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI= +github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY= +github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0= +github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo= +github.com/grpc-ecosystem/grpc-gateway/v2 v2.23.0 h1:ad0vkEBuk23VJzZR9nkLVG0YAoN9coASF1GusYX6AlU= +github.com/grpc-ecosystem/grpc-gateway/v2 v2.23.0/go.mod h1:igFoXX2ELCW06bol23DWPB5BEWfZISOzSP5K2sbLea0= +github.com/kisielk/errcheck v1.5.0/go.mod h1:pFxgyoBC7bSaBwPgfKdkLd5X25qrDl4LWUI2bnpBCr8= +github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck= +github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ= +github.com/moby/docker-image-spec v1.3.1 h1:jMKff3w6PgbfSa69GfNg+zN/XLhfXJGnEx3Nl2EsFP0= +github.com/moby/docker-image-spec v1.3.1/go.mod h1:eKmb5VW8vQEh/BAr2yvVNvuiJuY6UIocYsFu/DxxRpo= +github.com/moby/term v0.5.0 h1:xt8Q1nalod/v7BqbG21f8mQPqH+xAaC9C3N3wfWbVP0= +github.com/moby/term v0.5.0/go.mod h1:8FzsFHVUBGZdbDsJw/ot+X+d5HLUbvklYLJ9uGfcI3Y= +github.com/morikuni/aec v1.0.0 h1:nP9CBfwrvYnBRgY6qfDQkygYDmYwOilePFkwzv4dU8A= +github.com/morikuni/aec v1.0.0/go.mod h1:BbKIizmSmc5MMPqRYbxO4ZU0S0+P200+tUnFx7PXmsc= +github.com/nfnt/resize v0.0.0-20180221191011-83c6a9932646 h1:zYyBkD/k9seD2A7fsi6Oo2LfFZAehjjQMERAvZLEDnQ= +github.com/nfnt/resize v0.0.0-20180221191011-83c6a9932646/go.mod h1:jpp1/29i3P1S/RLdc7JQKbRpFeM1dOBd8T9ki5s+AY8= +github.com/opencontainers/go-digest v1.0.0 h1:apOUWs51W5PlhuyGyz9FCeeBIOUDA/6nW8Oi/yOhh5U= +github.com/opencontainers/go-digest v1.0.0/go.mod h1:0JzlMkj0TRzQZfJkVvzbP0HBR3IKzErnv2BNG4W4MAM= +github.com/opencontainers/image-spec v1.1.0 h1:8SG7/vwALn54lVB/0yZ/MMwhFrPYtpEHQb2IpWsCzug= +github.com/opencontainers/image-spec v1.1.0/go.mod h1:W4s4sFTMaBeK1BQLXbG4AdM2szdn85PY75RI83NrTrM= +github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0= +github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4= +github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0= +github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM= +github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4= +github.com/sirupsen/logrus v1.4.1/go.mod h1:ni0Sbl8bgC9z8RoU9G6nDWqqs/fq4eDPysMBDgk/93Q= +github.com/sirupsen/logrus v1.9.3 h1:dueUQJ1C2q9oE3F7wvmSGAaVtTmUizReu6fjN8uqzbQ= +github.com/sirupsen/logrus v1.9.3/go.mod h1:naHLuLoDiP4jHNo9R0sCBMtWGeIprob74mVsIT4qYEQ= +github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME= +github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs= +github.com/stretchr/testify v1.9.0 h1:HtqpIVDClZ4nwg75+f6Lvsy/wHu+3BoSGCbBAcpTsTg= +github.com/stretchr/testify v1.9.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY= +github.com/tetratelabs/wazero v1.8.1 h1:NrcgVbWfkWvVc4UtT4LRLDf91PsOzDzefMdwhLfA550= +github.com/tetratelabs/wazero v1.8.1/go.mod h1:yAI0XTsMBhREkM/YDAK/zNou3GoiAce1P6+rp/wQhjs= +github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74= +github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74= +go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.57.0 h1:DheMAlT6POBP+gh8RUH19EOTnQIor5QE0uSRPtzCpSw= +go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.57.0/go.mod h1:wZcGmeVO9nzP67aYSLDqXNWK87EZWhi7JWj1v7ZXf94= +go.opentelemetry.io/otel v1.32.0 h1:WnBN+Xjcteh0zdk01SVqV55d/m62NJLJdIyb4y/WO5U= +go.opentelemetry.io/otel v1.32.0/go.mod h1:00DCVSB0RQcnzlwyTfqtxSm+DRr9hpYrHjNGiBHVQIg= +go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.32.0 h1:IJFEoHiytixx8cMiVAO+GmHR6Frwu+u5Ur8njpFO6Ac= +go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.32.0/go.mod h1:3rHrKNtLIoS0oZwkY2vxi+oJcwFRWdtUyRII+so45p8= +go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.32.0 h1:cMyu9O88joYEaI47CnQkxO1XZdpoTF9fEnW2duIddhw= +go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.32.0/go.mod h1:6Am3rn7P9TVVeXYG+wtcGE7IE1tsQ+bP3AuWcKt/gOI= +go.opentelemetry.io/otel/metric v1.32.0 h1:xV2umtmNcThh2/a/aCP+h64Xx5wsj8qqnkYZktzNa0M= +go.opentelemetry.io/otel/metric v1.32.0/go.mod h1:jH7CIbbK6SH2V2wE16W05BHCtIDzauciCRLoc/SyMv8= +go.opentelemetry.io/otel/sdk v1.32.0 h1:RNxepc9vK59A8XsgZQouW8ue8Gkb4jpWtJm9ge5lEG4= +go.opentelemetry.io/otel/sdk v1.32.0/go.mod h1:LqgegDBjKMmb2GC6/PrTnteJG39I8/vJCAP9LlJXEjU= +go.opentelemetry.io/otel/trace v1.32.0 h1:WIC9mYrXf8TmY/EXuULKc8hR17vE+Hjv2cssQDe03fM= +go.opentelemetry.io/otel/trace v1.32.0/go.mod h1:+i4rkvCraA+tG6AzwloGaCtkx53Fa+L+V8e9a7YvhT8= +go.opentelemetry.io/proto/otlp v1.3.1 h1:TrMUixzpM0yuc/znrFTP9MMRh8trP93mkCiDVeXrui0= +go.opentelemetry.io/proto/otlp v1.3.1/go.mod h1:0X1WI4de4ZsLrrJNLAQbFeLCm3T7yBkR0XqQ7niQU+8= +golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w= +golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI= +golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto= +golang.org/x/image v0.0.0-20191009234506-e7c1f5e7dbb8/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0= +golang.org/x/image v0.21.0 h1:c5qV36ajHpdj4Qi0GnE0jUc/yuo33OLFaa0d+crTD5s= +golang.org/x/image v0.21.0/go.mod h1:vUbsLavqK/W303ZroQQVKQ+Af3Yl6Uz1Ppu5J/cLz78= +golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA= +golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA= +golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg= +golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s= +golang.org/x/net v0.0.0-20200226121028-0de0cce0169b/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s= +golang.org/x/net v0.0.0-20201021035429-f5854403a974/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU= +golang.org/x/net v0.32.0 h1:ZqPmj8Kzc+Y6e0+skZsuACbx+wzMgo5MQsJh9Qd6aYI= +golang.org/x/net v0.32.0/go.mod h1:CwU0IoeOlnQQWJ6ioyFrfRuomB8GKF6KbYXZVyeXNfs= +golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= +golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= +golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= +golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY= +golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY= +golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= +golang.org/x/sys v0.0.0-20190507160741-ecd444e8653b/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= +golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= +golang.org/x/sys v0.28.0 h1:Fksou7UEQUWlKvIdsqzJmUmCX3cZuD2+P3XyyzwMhlA= +golang.org/x/sys v0.28.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA= +golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ= +golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ= +golang.org/x/text v0.21.0 h1:zyQAAkrwaneQ066sspRyJaG9VNi/YJ1NfzcGB3hZ/qo= +golang.org/x/text v0.21.0/go.mod h1:4IBbMaMmOPCJ8SecivzSH54+73PCFmPWxNTLm+vZkEQ= +golang.org/x/time v0.8.0 h1:9i3RxcPv3PZnitoVGMPDKZSq1xW1gK1Xy3ArNOGZfEg= +golang.org/x/time v0.8.0/go.mod h1:3BpzKBy/shNhVucY/MWOyx10tF3SFh9QdLuxbVysPQM= +golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ= +golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo= +golang.org/x/tools v0.0.0-20200619180055-7c47624df98f/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE= +golang.org/x/tools v0.0.0-20210106214847-113979e3529a/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA= +golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= +golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= +golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= +golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= +google.golang.org/genproto/googleapis/api v0.0.0-20241104194629-dd2ea8efbc28 h1:M0KvPgPmDZHPlbRbaNU1APr28TvwvvdUPlSv7PUvy8g= +google.golang.org/genproto/googleapis/api v0.0.0-20241104194629-dd2ea8efbc28/go.mod h1:dguCy7UOdZhTvLzDyt15+rOrawrpM4q7DD9dQ1P11P4= +google.golang.org/genproto/googleapis/rpc v0.0.0-20241104194629-dd2ea8efbc28 h1:XVhgTWWV3kGQlwJHR3upFWZeTsei6Oks1apkZSeonIE= +google.golang.org/genproto/googleapis/rpc v0.0.0-20241104194629-dd2ea8efbc28/go.mod h1:GX3210XPVPUjJbTUbvwI8f2IpZDMZuPJWDzDuebbviI= +google.golang.org/grpc v1.67.1 h1:zWnc1Vrcno+lHZCOofnIMvycFcc0QRGIzm9dhnDX68E= +google.golang.org/grpc v1.67.1/go.mod h1:1gLDyUQU7CTLJI90u3nXZ9ekeghjeM7pTDZlqFNg2AA= +google.golang.org/protobuf v1.35.1 h1:m3LfL6/Ca+fqnjnlqQXNpFPABW1UD7mjh8KO2mKFytA= +google.golang.org/protobuf v1.35.1/go.mod h1:9fA7Ob0pmnwhb644+1+CVWFRbNajQ6iRojtC/QF5bRE= +gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA= +gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= +gotest.tools/v3 v3.5.1 h1:EENdUnS3pdur5nybKYIh2Vfgc8IUNBjxDPSjtiJcOzU= +gotest.tools/v3 v3.5.1/go.mod h1:isy3WKz7GK6uNw/sbHzfKBLvlvXwUyV06n6brMxxopU= diff --git a/main.go b/main.go new file mode 100644 index 0000000..145fa23 --- /dev/null +++ b/main.go @@ -0,0 +1,362 @@ +package main + +import ( + "fmt" + "math/rand" + "os" + "path/filepath" + "strings" + + "github.com/docker/docker/api/types" + "github.com/docker/docker/api/types/container" + "github.com/docker/docker/client" + "github.com/goccy/go-graphviz" + "github.com/goccy/go-graphviz/cgraph" + "golang.org/x/net/context" +) + +// COLORS enthält eine Liste von Farben für die Netzwerke +var COLORS = []string{ + "#1f78b4", "#33a02c", "#e31a1c", "#ff7f00", "#6a3d9a", "#b15928", + "#a6cee3", "#b2df8a", "#fdbf6f", "#cab2d6", "#90f530", "#0d8bad", + "#e98420", "#0e9997", "#6a5164", "#afa277", "#149ead", "#a54a56", +} + +var i = 0 + +// Network repräsentiert ein Docker-Netzwerk +type Network struct { + Name string + Gateway string + Internal bool + Isolated bool + Color string +} + +// Interface repräsentiert eine Netzwerkschnittstelle eines Containers +type Interface struct { + EndpointID string + Address string + Aliases []string +} + +// Port repräsentiert einen Port eines Containers +type Port struct { + Port string +} + +// Container repräsentiert einen Docker-Container +type Container struct { + ContainerID string + Name string + Interfaces []Interface + Ports []Port +} + +// Link repräsentiert eine Verbindung zwischen einem Container und einem Netzwerk +type Link struct { + ContainerID string + EndpointID string + NetworkName string +} + +func getUniqueColor() string { + if i < len(COLORS) { + c := COLORS[i] + i++ + return c + } + return fmt.Sprintf("#%06x", rand.Intn(0xFFFFFF)) +} + +func getNetworks(cli *client.Client, verbose bool) (map[string]Network, error) { + networks := make(map[string]Network) + ctx := context.Background() + + netList, err := cli.NetworkList(ctx, types.NetworkListOptions{}) + if err != nil { + return nil, err + } + + for _, net := range netList { + gateway := "" + if len(net.IPAM.Config) > 0 { + gateway = net.IPAM.Config[0].Subnet + } + + if gateway == "" { + continue + } + + internal := net.Internal + isolated := false + if val, ok := net.Options["com.docker.network.bridge.enable_icc"]; ok && val == "false" { + isolated = true + } + + if verbose { + fmt.Printf("Network: %s %s %s gw:%s\n", net.Name, + map[bool]string{true: "internal", false: ""}[internal], + map[bool]string{true: "isolated", false: ""}[isolated], + gateway) + } + + color := getUniqueColor() + networks[net.Name] = Network{net.Name, gateway, internal, isolated, color} + } + + networks["host"] = Network{"host", "0.0.0.0", false, false, "#808080"} + return networks, nil +} + +func getContainers(cli *client.Client, verbose bool) ([]Container, []Link, error) { + var containers []Container + var links []Link + ctx := context.Background() + + contList, err := cli.ContainerList(ctx, container.ListOptions{}) + if err != nil { + return nil, nil, err + } + + for _, cont := range contList { + var interfaces []Interface + var ports []Port + + contInspect, err := cli.ContainerInspect(ctx, cont.ID) + if err != nil { + return nil, nil, err + } + + for portName := range contInspect.NetworkSettings.Ports { + ports = append(ports, Port{portName.Port()}) + } + + for netName, netInfo := range contInspect.NetworkSettings.Networks { + aliases := []string{} + for _, alias := range netInfo.Aliases { + if alias != cont.ID[:12] && alias != cont.Names[0][1:] { + aliases = append(aliases, alias) + } + } + + interfaces = append(interfaces, Interface{ + EndpointID: netInfo.EndpointID, + Address: netInfo.IPAddress, + Aliases: aliases, + }) + + links = append(links, Link{ + ContainerID: cont.ID, + EndpointID: netInfo.EndpointID, + NetworkName: netName, + }) + } + + if verbose { + fmt.Printf("Container: %s %v %s\n", cont.Names[0][1:], ports, interfaces) + } + + containers = append(containers, Container{ + ContainerID: cont.ID, + Name: cont.Names[0][1:], + Interfaces: interfaces, + Ports: ports, + }) + } + + return containers, links, nil +} + +func drawNetwork(graph *cgraph.Graph, net Network) error { + label := fmt.Sprintf("{%s", net.Name) + if net.Internal { + label += " | Internal" + } + if net.Isolated { + label += " | Containers isolated" + } + label += "}" + + n, err := graph.CreateNodeByName(net.Name) + if err != nil { + return err + } + n.SetShape(cgraph.BoxShape) + n.SetLabel(label) + n.SetColor(net.Color + "60") + n.SetStyle("rounded") + return nil +} + +func drawContainer(graph *cgraph.Graph, c Container) error { + var ifaceLabels []string + var portLabels []string + + for _, port := range c.Ports { + portLabels = append(portLabels, fmt.Sprintf("{%s}}", port.Port)) + } + + for _, iface := range c.Interfaces { + ifaceLabel := "{" + for _, alias := range iface.Aliases { + ifaceLabel += fmt.Sprintf(" %s |", alias) + } + ifaceLabel += fmt.Sprintf("<%s> %s }}", iface.EndpointID, iface.Address) + ifaceLabels = append(ifaceLabels, ifaceLabel) + } + + label := fmt.Sprintf("{{ %s ", c.Name) + if len(portLabels) > 0 { + label += fmt.Sprintf("| {{ %s }} ", strings.Join(portLabels, " | ")) + } + label += fmt.Sprintf("| {{ %s }} }}", strings.Join(ifaceLabels, " | ")) + + n, err := graph.CreateNodeByName(c.ContainerID) + if err != nil { + return err + } + n.SetShape(cgraph.BoxShape) + n.SetLabel(label) + n.SetFillColor("#cdcdcd") + n.SetStyle("filled") + return nil +} + +func drawLink(graph *cgraph.Graph, networks map[string]Network, link Link) error { + style := cgraph.SolidEdgeStyle + if networks[link.NetworkName].Isolated { + style = cgraph.DashedEdgeStyle + } else if networks[link.NetworkName].Name == "host" { + style = cgraph.BoldEdgeStyle + } + + n, err := graph.NodeByName(link.ContainerID) + if err != nil { + return err + } + + m, err := graph.NodeByName(link.NetworkName) + if err != nil { + return err + } + + e, err := graph.CreateEdgeByName("", n, m) + if err != nil { + return err + } + + e.SetColor(networks[link.NetworkName].Color) + e.SetStyle(style) + return nil +} + +func generateGraph(verbose bool, file string, url bool) error { + cli, err := client.NewClientWithOpts(client.FromEnv) + if err != nil { + return err + } + + networks, err := getNetworks(cli, verbose) + if err != nil { + return err + } + + containers, links, err := getContainers(cli, verbose) + if err != nil { + return err + } + + ctx := context.Background() + g, err := graphviz.New(ctx) + if err != nil { + return err + } + graph, err := g.Graph() + if err != nil { + return err + } + graph.SetLayout("sfdp") + graph.SetRankDir("LR") + //graph.SetBackground("transparent") + + for _, network := range networks { + if err := drawNetwork(graph, network); err != nil { + return err + } + } + + for _, container := range containers { + if err := drawContainer(graph, container); err != nil { + return err + } + } + + for _, link := range links { + if link.NetworkName != "none" { + if err := drawLink(graph, networks, link); err != nil { + return err + } + } + } + + for _, network := range networks { + if !network.Internal && network.Name != "host" { + startNode, err := graph.CreateNodeByName("start") + if err != nil { + return err + } + endNode, err := graph.CreateNodeByName("end") + if err != nil { + return err + } + e, err := graph.CreateEdgeByName("e", startNode, endNode) + if err != nil { + return err + } + e.SetColor("#808080") + e.SetStyle("dotted") + } + } + + if file != "" { + if err := g.RenderFilename(ctx, graph, graphviz.Format(filepath.Ext(file)[1:]), file); err != nil { + return err + } + } else if url { + // URL-Generierung ist in dieser Go-Version nicht implementiert + fmt.Println("URL generation is not implemented in this Go version") + } else { + if err := g.Render(ctx, graph, graphviz.Format("dot"), os.Stdout); err != nil { + return err + } + } + + return nil +} + +func main() { + verbose := false + file := "" + url := false + + // Einfache Argumentverarbeitung (kann durch ein Argument-Parsing-Paket ersetzt werden) + for i := 1; i < len(os.Args); i++ { + switch os.Args[i] { + case "-v", "--verbose": + verbose = true + case "-o", "--out": + if i+1 < len(os.Args) { + file = os.Args[i+1] + i++ + } + case "-u", "--url": + url = true + } + } + + if err := generateGraph(verbose, file, url); err != nil { + fmt.Fprintf(os.Stderr, "Error: %v\n", err) + os.Exit(1) + } +}