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feature/tt/initial-implementation (#1)
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Browse Source 
Reviewed-on: #1
Co-authored-by: Tobias Trabelsi <lerentis@uploadfilter24.eu>
Co-committed-by: Tobias Trabelsi <lerentis@uploadfilter24.eu>
This commit is contained in:
Tobias Trabelsi
2025-10-06 09:21:57 +00:00
committed by lerentis
parent 33921aa992
commit e51594fdd7
17 changed files with 774 additions and 1 deletions
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49
.gitea/workflows/main.yaml Normal file
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name: Gitea Docker Build Demo
run-name: Reference Branch Build 🚀
on:
push:
branches:
- main
jobs:
Test:
runs-on: ubuntu-latest
steps:
- name: Check out repository code
uses: actions/checkout@v4
- name: Setup Go
uses: actions/setup-go@v5
with:
go-version: '1.24.x'
- name: Test with the Go CLI
run: go test ./...
Build_Image:
runs-on: ubuntu-latest
steps:
- name: Check out repository code
uses: actions/checkout@v4
- name: Set up Cosign
uses: sigstore/cosign-installer@v3.10.0
- name: Set up Docker Buildx
uses: docker/setup-buildx-action@v3
with:
driver: remote
endpoint: tcp://buildkit-service.buildkit-service.svc:1234
- name: Log in to Docker Hub
uses: docker/login-action@v2
with:
username: ${{ secrets.DOCKER_HUB_USERNAME }}
password: ${{ secrets.DOCKER_HUB_PASSWORD }}
- name: Build and Push the Docker Image
uses: docker/build-push-action@v6
id: build-and-push
with:
context: .
file: ./Dockerfile
push: false
tags: |
lerentis/canada-kaktus:{{ github.sha }}
- name: Sign the published Docker image
env:
COSIGN_EXPERIMENTAL: "true"
run: cosign sign lerentis/canada-kaktus:${{ github.sha }}@${{ steps.build-and-push.outputs.digest }}

34
.gitea/workflows/pr.yaml Normal file
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name: PR Build
run-name: ${{ gitea.actor }} is testing out Gitea Actions 🚀
on: [pull_request]
jobs:
Test:
runs-on: ubuntu-latest
steps:
- name: Check out repository code
uses: actions/checkout@v4
- name: Setup Go
uses: actions/setup-go@v5
with:
go-version: '1.24.x'
- name: Test with the Go CLI
run: go test ./...
Build_Image:
runs-on: ubuntu-latest
steps:
- name: Check out repository code
uses: actions/checkout@v4
- name: Set up Docker Buildx
uses: docker/setup-buildx-action@v3
with:
driver: remote
endpoint: tcp://buildkit-service.buildkit-service.svc:1234
- name: Build and Push the Docker Image
uses: docker/build-push-action@v6
with:
context: .
file: ./Dockerfile
push: false
tags: |
lerentis/canada-kaktus:latest

46
.gitea/workflows/release.yaml Normal file
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name: Release
run-name: ${{ gitea.actor }} is Releasing a new version 🚀
on: [release]
jobs:
Test:
runs-on: ubuntu-latest
steps:
- name: Check out repository code
uses: actions/checkout@v4
- name: Setup Go
uses: actions/setup-go@v5
with:
go-version: '1.24.x'
- name: Test with the Go CLI
run: go test ./...
Build_Image:
runs-on: ubuntu-latest
steps:
- name: Check out repository code
uses: actions/checkout@v4
- name: Set up Cosign
uses: sigstore/cosign-installer@v3.10.0
- name: Set up Docker Buildx
uses: docker/setup-buildx-action@v3
with:
driver: remote
endpoint: tcp://buildkit-service.buildkit-service.svc:1234
- name: Log in to Docker Hub
uses: docker/login-action@v2
with:
username: ${{ secrets.DOCKER_HUB_USERNAME }}
password: ${{ secrets.DOCKER_HUB_PASSWORD }}
- name: Build and Push the Docker Image
uses: docker/build-push-action@v6
id: build-and-push
with:
context: .
file: ./Dockerfile
push: true
tags: |
lerentis/canada-kaktus:{{ github.event.release.tag_name }}
- name: Sign the published Docker image
env:
COSIGN_EXPERIMENTAL: "true"
run: cosign sign lerentis/canada-kaktus:${{ github.event.release.tag_name }}@${{ steps.build-and-push.outputs.digest }}

18
Dockerfile Normal file
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FROM golang:1.24 as build
WORKDIR /app
COPY . .
RUN go mod tidy && CGO_ENABLED=0 GOOS=linux go build -a -tags netgo -ldflags '-w -extldflags "-static"' -o canada-kaktus ./cmd/
FROM scratch
COPY --from=build /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/ca-certificates.crt
COPY --from=build /etc/passwd /etc/passwd
COPY --from=build /etc/group /etc/group
COPY --from=build --chown=65534:65534 /app/canada-kaktus /usr/local/bin/canada-kaktus
USER nobody
ENTRYPOINT ["/usr/local/bin/canada-kaktus"]

2
README.md
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@@ -1,2 +1,2 @@
# mail-dns-service
# canada-kaktus

59
cmd/main.go Normal file
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package main
import (
"fmt"
"time"
"git.uploadfilter24.eu/covidnetes/canada-kaktus/internal"
"git.uploadfilter24.eu/covidnetes/canada-kaktus/internal/utils"
log "github.com/sirupsen/logrus"
)
func main() {
cfg, err := internal.GenConfig()
utils.ConfigureLogger(cfg)
if err != nil {
log.WithFields(log.Fields{
"Caller": "Main",
}).Fatal(fmt.Sprintf("Error generating Config: %s", err.Error()))
}
go func() {
log.WithFields(log.Fields{
"Caller": "Main",
}).Info("Starting Health Endpoint")
internal.StartHealthEndpoint()
}()
log.WithFields(log.Fields{
"Caller": "Main",
}).Info("Entering main event loop")
for {
servers, err := internal.GetAllNodes(cfg)
if err != nil {
log.WithFields(log.Fields{
"Caller": "Main",
}).Error(fmt.Sprintf("Error getting all Nodes: %s", err.Error()))
}
ips, err := internal.GetAllIps(servers)
if err != nil {
log.WithFields(log.Fields{
"Caller": "Main",
}).Error(fmt.Sprintf("Error getting all IPs: %s", err.Error()))
}
err = internal.RecreateIPPoolCrd(cfg, "covidnetes-pool", ips)
if err != nil {
log.WithFields(log.Fields{
"Caller": "Main",
}).Error(fmt.Sprintf("Error recreating IP Pool CRD: %s", err.Error()))
} else {
log.WithFields(log.Fields{
"Caller": "Main",
}).Info("Successfully recreated IP Pool CRD")
}
time.Sleep(15 * time.Minute)
}
}

48
go.mod Normal file
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module git.uploadfilter24.eu/covidnetes/canada-kaktus
go 1.24.0
require (
github.com/gorilla/mux v1.8.1
github.com/hetznercloud/hcloud-go v1.59.2
github.com/jinzhu/configor v1.2.2
github.com/sirupsen/logrus v1.9.3
k8s.io/client-go v0.34.1
)
require (
github.com/BurntSushi/toml v1.5.0 // indirect
github.com/beorn7/perks v1.0.1 // indirect
github.com/cespare/xxhash/v2 v2.3.0 // indirect
github.com/davecgh/go-spew v1.1.1 // indirect
github.com/fxamacker/cbor/v2 v2.9.0 // indirect
github.com/go-logr/logr v1.4.3 // indirect
github.com/gogo/protobuf v1.3.2 // indirect
github.com/json-iterator/go v1.1.12 // indirect
github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
github.com/modern-go/reflect2 v1.0.3-0.20250322232337-35a7c28c31ee // indirect
github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
github.com/prometheus/client_golang v1.23.2 // indirect
github.com/prometheus/client_model v0.6.2 // indirect
github.com/prometheus/common v0.66.1 // indirect
github.com/prometheus/procfs v0.17.0 // indirect
github.com/x448/float16 v0.8.4 // indirect
go.yaml.in/yaml/v2 v2.4.3 // indirect
golang.org/x/net v0.44.0 // indirect
golang.org/x/oauth2 v0.31.0 // indirect
golang.org/x/sys v0.36.0 // indirect
golang.org/x/term v0.35.0 // indirect
golang.org/x/text v0.29.0 // indirect
golang.org/x/time v0.13.0 // indirect
google.golang.org/protobuf v1.36.10 // indirect
gopkg.in/inf.v0 v0.9.1 // indirect
gopkg.in/yaml.v3 v3.0.1 // indirect
k8s.io/api v0.34.1 // indirect
k8s.io/apimachinery v0.34.1 // indirect
k8s.io/klog/v2 v2.130.1 // indirect
k8s.io/utils v0.0.0-20251002143259-bc988d571ff4 // indirect
sigs.k8s.io/json v0.0.0-20250730193827-2d320260d730 // indirect
sigs.k8s.io/randfill v1.0.0 // indirect
sigs.k8s.io/structured-merge-diff/v6 v6.3.0 // indirect
sigs.k8s.io/yaml v1.6.0 // indirect
)

166
go.sum Normal file
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@@ -0,0 +1,166 @@
github.com/BurntSushi/toml v1.2.0/go.mod h1:CxXYINrC8qIiEnFrOxCa7Jy5BFHlXnUU2pbicEuybxQ=
github.com/BurntSushi/toml v1.5.0 h1:W5quZX/G/csjUnuI8SUYlsHs9M38FC7znL0lIO+DvMg=
github.com/BurntSushi/toml v1.5.0/go.mod h1:ukJfTF/6rtPPRCnwkur4qwRxa8vTRFBF0uk2lLoLwho=
github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
github.com/cespare/xxhash/v2 v2.3.0 h1:UL815xU9SqsFlibzuggzjXhog7bL6oX9BbNZnL2UFvs=
github.com/cespare/xxhash/v2 v2.3.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
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/emicklei/go-restful/v3 v3.12.2 h1:DhwDP0vY3k8ZzE0RunuJy8GhNpPL6zqLkDf9B/a0/xU=
github.com/emicklei/go-restful/v3 v3.12.2/go.mod h1:6n3XBCmQQb25CM2LCACGz8ukIrRry+4bhvbpWn3mrbc=
github.com/fxamacker/cbor/v2 v2.9.0 h1:NpKPmjDBgUfBms6tr6JZkTHtfFGcMKsw3eGcmD/sapM=
github.com/fxamacker/cbor/v2 v2.9.0/go.mod h1:vM4b+DJCtHn+zz7h3FFp/hDAI9WNWCsZj23V5ytsSxQ=
github.com/go-logr/logr v1.4.3 h1:CjnDlHq8ikf6E492q6eKboGOC0T8CDaOvkHCIg8idEI=
github.com/go-logr/logr v1.4.3/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=
github.com/go-openapi/jsonpointer v0.21.0 h1:YgdVicSA9vH5RiHs9TZW5oyafXZFc6+2Vc1rr/O9oNQ=
github.com/go-openapi/jsonpointer v0.21.0/go.mod h1:IUyH9l/+uyhIYQ/PXVA41Rexl+kOkAPDdXEYns6fzUY=
github.com/go-openapi/jsonreference v0.20.2 h1:3sVjiK66+uXK/6oQ8xgcRKcFgQ5KXa2KvnJRumpMGbE=
github.com/go-openapi/jsonreference v0.20.2/go.mod h1:Bl1zwGIM8/wsvqjsOQLJ/SH+En5Ap4rVB5KVcIDZG2k=
github.com/go-openapi/swag v0.23.0 h1:vsEVJDUo2hPJ2tu0/Xc+4noaxyEffXNIs3cOULZ+GrE=
github.com/go-openapi/swag v0.23.0/go.mod h1:esZ8ITTYEsH1V2trKHjAN8Ai7xHb8RV+YSZ577vPjgQ=
github.com/gogo/protobuf v1.3.2 h1:Ov1cvc58UF3b5XjBnZv7+opcTcQFZebYjWzi34vdm4Q=
github.com/gogo/protobuf v1.3.2/go.mod h1:P1XiOD3dCwIKUDQYPy72D8LYyHL2YPYrpS2s69NZV8Q=
github.com/google/gnostic-models v0.7.0 h1:qwTtogB15McXDaNqTZdzPJRHvaVJlAl+HVQnLmJEJxo=
github.com/google/gnostic-models v0.7.0/go.mod h1:whL5G0m6dmc5cPxKc5bdKdEN3UjI7OUGxBlw57miDrQ=
github.com/google/go-cmp v0.7.0 h1:wk8382ETsv4JYUZwIsn6YpYiWiBsYLSJiTsyBybVuN8=
github.com/google/go-cmp v0.7.0/go.mod h1:pXiqmnSA92OHEEa9HXL2W4E7lf9JzCmGVUdgjX3N/iU=
github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
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/gorilla/mux v1.8.1 h1:TuBL49tXwgrFYWhqrNgrUNEY92u81SPhu7sTdzQEiWY=
github.com/gorilla/mux v1.8.1/go.mod h1:AKf9I4AEqPTmMytcMc0KkNouC66V3BtZ4qD5fmWSiMQ=
github.com/hetznercloud/hcloud-go v1.59.2 h1:NkCPwYiPv85FnOV3IW9/gxfW61TPIUSwyPHRSLwCkHA=
github.com/hetznercloud/hcloud-go v1.59.2/go.mod h1:oTebZCjd+osj75jlI76Z+zjN1sTxmMiQ1MWoO8aRl1c=
github.com/jinzhu/configor v1.2.2 h1:sLgh6KMzpCmaQB4e+9Fu/29VErtBUqsS2t8C9BNIVsA=
github.com/jinzhu/configor v1.2.2/go.mod h1:iFFSfOBKP3kC2Dku0ZGB3t3aulfQgTGJknodhFavsU8=
github.com/josharian/intern v1.0.0 h1:vlS4z54oSdjm0bgjRigI+G1HpF+tI+9rE5LLzOg8HmY=
github.com/josharian/intern v1.0.0/go.mod h1:5DoeVV0s6jJacbCEi61lwdGj/aVlrQvzHFFd8Hwg//Y=
github.com/json-iterator/go v1.1.12 h1:PV8peI4a0ysnczrg+LtxykD8LfKY9ML6u2jnxaEnrnM=
github.com/json-iterator/go v1.1.12/go.mod h1:e30LSqwooZae/UwlEbR2852Gd8hjQvJoHmT4TnhNGBo=
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/klauspost/compress v1.18.0 h1:c/Cqfb0r+Yi+JtIEq73FWXVkRonBlf0CRNYc8Zttxdo=
github.com/klauspost/compress v1.18.0/go.mod h1:2Pp+KzxcywXVXMr50+X0Q/Lsb43OQHYWRCY2AiWywWQ=
github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
github.com/kr/pretty v0.3.1/go.mod h1:hoEshYVHaxMs3cyo3Yncou5ZscifuDolrwPKZanG3xk=
github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
github.com/kylelemons/godebug v1.1.0 h1:RPNrshWIDI6G2gRW9EHilWtl7Z6Sb1BR0xunSBf0SNc=
github.com/kylelemons/godebug v1.1.0/go.mod h1:9/0rRGxNHcop5bhtWyNeEfOS8JIWk580+fNqagV/RAw=
github.com/mailru/easyjson v0.7.7 h1:UGYAvKxe3sBsEDzO8ZeWOSlIQfWFlxbzLZe7hwFURr0=
github.com/mailru/easyjson v0.7.7/go.mod h1:xzfreul335JAWq5oZzymOObrkdz5UnU4kGfJJLY9Nlc=
github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd h1:TRLaZ9cD/w8PVh93nsPXa1VrQ6jlwL5oN8l14QlcNfg=
github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
github.com/modern-go/reflect2 v1.0.2/go.mod h1:yWuevngMOJpCy52FWWMvUC8ws7m/LJsjYzDa0/r8luk=
github.com/modern-go/reflect2 v1.0.3-0.20250322232337-35a7c28c31ee h1:W5t00kpgFdJifH4BDsTlE89Zl93FEloxaWZfGcifgq8=
github.com/modern-go/reflect2 v1.0.3-0.20250322232337-35a7c28c31ee/go.mod h1:yWuevngMOJpCy52FWWMvUC8ws7m/LJsjYzDa0/r8luk=
github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 h1:C3w9PqII01/Oq1c1nUAm88MOHcQC9l5mIlSMApZMrHA=
github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822/go.mod h1:+n7T8mK8HuQTcFwEeznm/DIxMOiR9yIdICNftLE1DvQ=
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/prometheus/client_golang v1.23.2 h1:Je96obch5RDVy3FDMndoUsjAhG5Edi49h0RJWRi/o0o=
github.com/prometheus/client_golang v1.23.2/go.mod h1:Tb1a6LWHB3/SPIzCoaDXI4I8UHKeFTEQ1YCr+0Gyqmg=
github.com/prometheus/client_model v0.6.2 h1:oBsgwpGs7iVziMvrGhE53c/GrLUsZdHnqNwqPLxwZyk=
github.com/prometheus/client_model v0.6.2/go.mod h1:y3m2F6Gdpfy6Ut/GBsUqTWZqCUvMVzSfMLjcu6wAwpE=
github.com/prometheus/common v0.66.1 h1:h5E0h5/Y8niHc5DlaLlWLArTQI7tMrsfQjHV+d9ZoGs=
github.com/prometheus/common v0.66.1/go.mod h1:gcaUsgf3KfRSwHY4dIMXLPV0K/Wg1oZ8+SbZk/HH/dA=
github.com/prometheus/procfs v0.17.0 h1:FuLQ+05u4ZI+SS/w9+BWEM2TXiHKsUQ9TADiRH7DuK0=
github.com/prometheus/procfs v0.17.0/go.mod h1:oPQLaDAMRbA+u8H5Pbfq+dl3VDAvHxMUOVhe0wYB2zw=
github.com/rogpeppe/go-internal v1.13.1 h1:KvO1DLK/DRN07sQ1LQKScxyZJuNnedQ5/wKSR38lUII=
github.com/rogpeppe/go-internal v1.13.1/go.mod h1:uMEvuHeurkdAXX61udpOXGD/AzZDWNMNyH2VO9fmH0o=
github.com/sirupsen/logrus v1.9.3 h1:dueUQJ1C2q9oE3F7wvmSGAaVtTmUizReu6fjN8uqzbQ=
github.com/sirupsen/logrus v1.9.3/go.mod h1:naHLuLoDiP4jHNo9R0sCBMtWGeIprob74mVsIT4qYEQ=
github.com/spf13/pflag v1.0.6 h1:jFzHGLGAlb3ruxLB8MhbI6A8+AQX/2eW4qeyNZXNp2o=
github.com/spf13/pflag v1.0.6/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
github.com/stretchr/objx v0.5.2 h1:xuMeJ0Sdp5ZMRXx/aWO6RZxdr3beISkG5/G/aIRr3pY=
github.com/stretchr/objx v0.5.2/go.mod h1:FRsXN1f5AsAjCGJKqEizvkpNtU+EGNCLh3NxZ/8L+MA=
github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
github.com/stretchr/testify v1.11.1 h1:7s2iGBzp5EwR7/aIZr8ao5+dra3wiQyKjjFuvgVKu7U=
github.com/stretchr/testify v1.11.1/go.mod h1:wZwfW3scLgRK+23gO65QZefKpKQRnfz6sD981Nm4B6U=
github.com/x448/float16 v0.8.4 h1:qLwI1I70+NjRFUR3zs1JPUCgaCXSh3SW62uAKT1mSBM=
github.com/x448/float16 v0.8.4/go.mod h1:14CWIYCyZA/cWjXOioeEpHeN/83MdbZDRQHoFcYsOfg=
github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
go.uber.org/goleak v1.3.0 h1:2K3zAYmnTNqV73imy9J1T3WC+gmCePx2hEGkimedGto=
go.uber.org/goleak v1.3.0/go.mod h1:CoHD4mav9JJNrW/WLlf7HGZPjdw8EucARQHekz1X6bE=
go.yaml.in/yaml/v2 v2.4.3 h1:6gvOSjQoTB3vt1l+CU+tSyi/HOjfOjRLJ4YwYZGwRO0=
go.yaml.in/yaml/v2 v2.4.3/go.mod h1:zSxWcmIDjOzPXpjlTTbAsKokqkDNAVtZO0WOMiT90s8=
go.yaml.in/yaml/v3 v3.0.4 h1:tfq32ie2Jv2UxXFdLJdh3jXuOzWiL1fo0bu/FbuKpbc=
go.yaml.in/yaml/v3 v3.0.4/go.mod h1:DhzuOOF2ATzADvBadXxruRBLzYTpT36CKvDb3+aBEFg=
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/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 v0.44.0 h1:evd8IRDyfNBMBTTY5XRF1vaZlD+EmWx6x8PkhR04H/I=
golang.org/x/net v0.44.0/go.mod h1:ECOoLqd5U3Lhyeyo/QDCEVQ4sNgYsqvCZ722XogGieY=
golang.org/x/oauth2 v0.31.0 h1:8Fq0yVZLh4j4YA47vHKFTa9Ew5XIrCP8LC6UeNZnLxo=
golang.org/x/oauth2 v0.31.0/go.mod h1:lzm5WQJQwKZ3nwavOZ3IS5Aulzxi68dUSgRHujetwEA=
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 v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.36.0 h1:KVRy2GtZBrk1cBYA7MKu5bEZFxQk4NIDV6RLVcC8o0k=
golang.org/x/sys v0.36.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
golang.org/x/term v0.35.0 h1:bZBVKBudEyhRcajGcNc3jIfWPqV4y/Kt2XcoigOWtDQ=
golang.org/x/term v0.35.0/go.mod h1:TPGtkTLesOwf2DE8CgVYiZinHAOuy5AYUYT1lENIZnA=
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 v0.29.0 h1:1neNs90w9YzJ9BocxfsQNHKuAT4pkghyXc4nhZ6sJvk=
golang.org/x/text v0.29.0/go.mod h1:7MhJOA9CD2qZyOKYazxdYMF85OwPdEr9jTtBpO7ydH4=
golang.org/x/time v0.13.0 h1:eUlYslOIt32DgYD6utsuUeHs4d7AsEYLuIAdg7FlYgI=
golang.org/x/time v0.13.0/go.mod h1:eL/Oa2bBBK0TkX57Fyni+NgnyQQN4LitPmob2Hjnqw4=
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/protobuf v1.36.10 h1:AYd7cD/uASjIL6Q9LiTjz8JLcrh/88q5UObnmY3aOOE=
google.golang.org/protobuf v1.36.10/go.mod h1:HTf+CrKn2C3g5S8VImy6tdcUvCska2kB7j23XfzDpco=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
gopkg.in/evanphx/json-patch.v4 v4.12.0 h1:n6jtcsulIzXPJaxegRbvFNNrZDjbij7ny3gmSPG+6V4=
gopkg.in/evanphx/json-patch.v4 v4.12.0/go.mod h1:p8EYWUEYMpynmqDbY58zCKCFZw8pRWMG4EsWvDvM72M=
gopkg.in/inf.v0 v0.9.1 h1:73M5CoZyi3ZLMOyDlQh031Cx6N9NDJ2Vvfl76EDAgDc=
gopkg.in/inf.v0 v0.9.1/go.mod h1:cWUDdTG/fYaXco+Dcufb5Vnc6Gp2YChqWtbxRZE0mXw=
gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
k8s.io/api v0.34.1 h1:jC+153630BMdlFukegoEL8E/yT7aLyQkIVuwhmwDgJM=
k8s.io/api v0.34.1/go.mod h1:SB80FxFtXn5/gwzCoN6QCtPD7Vbu5w2n1S0J5gFfTYk=
k8s.io/apimachinery v0.34.1 h1:dTlxFls/eikpJxmAC7MVE8oOeP1zryV7iRyIjB0gky4=
k8s.io/apimachinery v0.34.1/go.mod h1:/GwIlEcWuTX9zKIg2mbw0LRFIsXwrfoVxn+ef0X13lw=
k8s.io/client-go v0.34.1 h1:ZUPJKgXsnKwVwmKKdPfw4tB58+7/Ik3CrjOEhsiZ7mY=
k8s.io/client-go v0.34.1/go.mod h1:kA8v0FP+tk6sZA0yKLRG67LWjqufAoSHA2xVGKw9Of8=
k8s.io/klog/v2 v2.130.1 h1:n9Xl7H1Xvksem4KFG4PYbdQCQxqc/tTUyrgXaOhHSzk=
k8s.io/klog/v2 v2.130.1/go.mod h1:3Jpz1GvMt720eyJH1ckRHK1EDfpxISzJ7I9OYgaDtPE=
k8s.io/kube-openapi v0.0.0-20250710124328-f3f2b991d03b h1:MloQ9/bdJyIu9lb1PzujOPolHyvO06MXG5TUIj2mNAA=
k8s.io/kube-openapi v0.0.0-20250710124328-f3f2b991d03b/go.mod h1:UZ2yyWbFTpuhSbFhv24aGNOdoRdJZgsIObGBUaYVsts=
k8s.io/utils v0.0.0-20251002143259-bc988d571ff4 h1:SjGebBtkBqHFOli+05xYbK8YF1Dzkbzn+gDM4X9T4Ck=
k8s.io/utils v0.0.0-20251002143259-bc988d571ff4/go.mod h1:OLgZIPagt7ERELqWJFomSt595RzquPNLL48iOWgYOg0=
sigs.k8s.io/json v0.0.0-20250730193827-2d320260d730 h1:IpInykpT6ceI+QxKBbEflcR5EXP7sU1kvOlxwZh5txg=
sigs.k8s.io/json v0.0.0-20250730193827-2d320260d730/go.mod h1:mdzfpAEoE6DHQEN0uh9ZbOCuHbLK5wOm7dK4ctXE9Tg=
sigs.k8s.io/randfill v1.0.0 h1:JfjMILfT8A6RbawdsK2JXGBR5AQVfd+9TbzrlneTyrU=
sigs.k8s.io/randfill v1.0.0/go.mod h1:XeLlZ/jmk4i1HRopwe7/aU3H5n1zNUcX6TM94b3QxOY=
sigs.k8s.io/structured-merge-diff/v6 v6.3.0 h1:jTijUJbW353oVOd9oTlifJqOGEkUw2jB/fXCbTiQEco=
sigs.k8s.io/structured-merge-diff/v6 v6.3.0/go.mod h1:M3W8sfWvn2HhQDIbGWj3S099YozAsymCo/wrT5ohRUE=
sigs.k8s.io/yaml v1.6.0 h1:G8fkbMSAFqgEFgh4b1wmtzDnioxFCUgTZhlbj5P9QYs=
sigs.k8s.io/yaml v1.6.0/go.mod h1:796bPqUfzR/0jLAl6XjHl3Ck7MiyVv8dbTdyT3/pMf4=

30
internal/config.go Normal file
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package internal
import (
"fmt"
"time"
"github.com/jinzhu/configor"
)
type Config = struct {
LogLevel string `default:"Info" env:"CANADA_KAKTUS_LOGLEVEL"`
LabelSelector string `default:"kops.k8s.io/instance-role=Node" env:"CANADA_KAKTUS_LABELSELECTOR"`
HcloudToken string `default:"" env:"CANADA_KAKTUS_HCLOUD_TOKEN"`
}
func GenConfig() (cfg *Config, err error) {
cfg = &Config{}
err = configor.New(&configor.Config{
ENVPrefix: "CANADA_KAKTUS",
AutoReload: true,
Silent: true,
AutoReloadInterval: time.Minute}).Load(cfg, "config.json")
if err != nil {
return nil, fmt.Errorf("error generating Config: %s", err.Error())
}
return cfg, nil
}

22
internal/config_test.go Normal file
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@@ -0,0 +1,22 @@
package internal
import (
"reflect"
"testing"
)
var defaultConfig = Config{
LogLevel: "Info",
LabelSelector: "kops.k8s.io/instance-role=Node",
HcloudToken: "",
}
func TestConfigDefaults(t *testing.T) {
cfg, err := GenConfig()
if err != nil {
t.Errorf("%s", err.Error())
}
if !reflect.DeepEqual(&defaultConfig, cfg) {
t.Errorf("got %+v, want %+v", cfg, defaultConfig)
}
}

31
internal/health.go Normal file
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@@ -0,0 +1,31 @@
package internal
import (
"fmt"
"net/http"
"github.com/gorilla/mux"
log "github.com/sirupsen/logrus"
)
func StartHealthEndpoint() {
r := mux.NewRouter()
r.Use(mux.CORSMethodMiddleware(r))
r.HandleFunc("/health", send200).Methods(http.MethodGet)
err := http.ListenAndServe("0.0.0.0:8080", r)
if err != nil {
log.WithFields(log.Fields{
"Caller": "StartHealthEndpoint",
}).Error(fmt.Sprintf("Error creating health endpoint: %s", err.Error()))
}
}
func send200(w http.ResponseWriter, r *http.Request) {
w.WriteHeader(http.StatusOK)
_, err := w.Write([]byte{})
if err != nil {
log.WithFields(log.Fields{
"Caller": "send200",
}).Error(fmt.Sprintf("Error answering health endpoint: %s", err.Error()))
}
}

23
internal/health_test.go Normal file
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@@ -0,0 +1,23 @@
package internal
import (
"net/http"
"strings"
"testing"
)
func TestHealth(t *testing.T) {
go func() {
StartHealthEndpoint()
}()
request, _ := http.NewRequest(http.MethodGet, "http://localhost:8080/health", strings.NewReader(""))
resp, err := http.DefaultClient.Do(request)
if err != nil {
t.Errorf("Health endpoint did not start: %v", err)
}
if resp.StatusCode != http.StatusOK {
t.Errorf("Bad response from health endpoint. Want: %d, got %d", http.StatusOK, resp.StatusCode)
}
}

40
internal/hetzner.go Normal file
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@@ -0,0 +1,40 @@
package internal
import (
"context"
"fmt"
"github.com/hetznercloud/hcloud-go/hcloud"
log "github.com/sirupsen/logrus"
)
func GetAllNodes(cfg *Config) ([]*hcloud.Server, error) {
client := hcloud.NewClient(hcloud.WithToken(cfg.HcloudToken))
servers, _, err := client.Server.List(context.TODO(), hcloud.ServerListOpts{
ListOpts: hcloud.ListOpts{
LabelSelector: cfg.LabelSelector,
}})
if err != nil {
return nil, fmt.Errorf("error listing Hetzner Nodes: %s", err.Error())
}
if servers == nil {
return nil, fmt.Errorf("no Nodes found with label selector: %s", cfg.LabelSelector)
}
return servers, nil
}
func GetAllIps(servers []*hcloud.Server) ([]string, error) {
ips := make([]string, len(servers))
for i, instance := range servers {
if instance.PublicNet.IPv4.IP == nil {
return []string{""}, fmt.Errorf("instance %s has no public Addresses", instance.Name)
}
log.WithFields(log.Fields{
"Caller": "GetAllIps",
}).Info(fmt.Sprintf("Found IP: %s", instance.PrivateNet[0].IP.String()))
ips[i] = instance.PublicNet.IPv4.IP.String()
}
return ips, nil
}

30
internal/hetzner_test.go Normal file
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@@ -0,0 +1,30 @@
package internal
import (
"testing"
"github.com/hetznercloud/hcloud-go/hcloud"
)
func TestGetAllIps(t *testing.T) {
servers := []*hcloud.Server{{
Status: hcloud.ServerStatusRunning,
Name: "Test",
}}
servers = append(servers, &hcloud.Server{
Status: hcloud.ServerStatusRunning,
Name: "Test2",
})
expectedError := "instance Test has no public Addresses"
_, err := GetAllIps(servers)
if err == nil {
t.Error("GetAllIps did not error with missing data")
}
if err.Error() != expectedError {
t.Errorf("Wrong error message. want %s, got %s", expectedError, err.Error())
}
}

111
internal/k8s.go Normal file
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@@ -0,0 +1,111 @@
package internal
import (
"bytes"
"context"
"fmt"
"html/template"
"k8s.io/client-go/kubernetes/scheme"
"k8s.io/client-go/rest"
)
var IP_POOL_TEMPLATE = `
{
"apiVersion": "cilium.io/v2alpha1",
"kind": "CiliumLoadBalancerIPPool",
"metadata": {
"name": "{{ .Name }}",
"annotations": {
"argocd.argoproj.io/tracking-id": "cilium-lb:cilium.io/CiliumLoadBalancerIPPool:kube-system/covidnetes-pool"
}
},
"spec": {
"blocks": [
{{- range $i, $ip := .IPs }}
{{- if $i}},{{ end }}
{
"cidr": "{{ $ip }}"
}
{{- end }}
],
"disabled": false
}
}
`
type CrdConfig struct {
Name string
IPs []string
}
func RecreateIPPoolCrd(cfg *Config, name string, ips []string) error {
routeclient, err := createRestClient()
if err != nil {
return fmt.Errorf("error creating REST Client: %v", err.Error())
}
body, err := generateIpPool(name, ips)
if err != nil {
return fmt.Errorf("error generating CRD: %v", err.Error())
}
decode := scheme.Codecs.UniversalDeserializer().Decode
obj, _, err := decode([]byte(body), nil, nil)
if err != nil {
return fmt.Errorf("could not deserialize CRD: %v", err.Error())
}
res := routeclient.Post().
Resource("routes").
Body(&obj).
Do(context.TODO())
var status int
res.StatusCode(&status)
if status >= 200 && status <= 400 {
return fmt.Errorf("failed to post CRD to kube api: %v", res.Error().Error())
}
return nil
}
func createRestClient() (*rest.RESTClient, error) {
k8s_config, err := rest.InClusterConfig()
if err != nil {
return nil, fmt.Errorf("could not create in cluster k8s config: %v", err)
}
k8s_config.APIPath = "/apis"
k8s_config.NegotiatedSerializer = scheme.Codecs.WithoutConversion()
routeclient, err := rest.RESTClientFor(k8s_config)
if err != nil {
return nil, fmt.Errorf("could not create k8s client: %v", err)
}
return routeclient, nil
}
func generateIpPool(name string, ips []string) (string, error) {
config := CrdConfig{
Name: name,
IPs: ips,
}
tmpl, err := template.New("ippool").Parse(IP_POOL_TEMPLATE)
if err != nil {
return "", fmt.Errorf("errors in ippool template: %s", err.Error())
}
var buf bytes.Buffer
err = tmpl.Execute(&buf, &config)
if err != nil {
return "", fmt.Errorf("could not render ippool template: %s", err.Error())
}
return buf.String(), nil
}

38
internal/k8s_test.go Normal file
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@@ -0,0 +1,38 @@
package internal
import (
"testing"
)
func TestGenerateIpPoolCRD(t *testing.T) {
expected_ip_pool := `
{
"apiVersion": "cilium.io/v2alpha1",
"kind": "CiliumLoadBalancerIPPool",
"metadata": {
"name": "covidnetes-pool",
"annotations": {
"argocd.argoproj.io/tracking-id": "cilium-lb:cilium.io/CiliumLoadBalancerIPPool:kube-system/covidnetes-pool"
}
},
"spec": {
"blocks": [
{
"cidr": "49.13.48.9/32"
},
{
"cidr": "91.107.211.117/32"
}
],
"disabled": false
}
}
`
got, err := generateIpPool("covidnetes-pool", []string{"49.13.48.9/32", "91.107.211.117/32"})
if err != nil {
t.Errorf("%s", err.Error())
}
if expected_ip_pool != got {
t.Errorf("got %+v, want %+v", got, expected_ip_pool)
}
}

28
internal/utils/logging.go Normal file
View File

@@ -0,0 +1,28 @@
package utils
import (
"os"
"git.uploadfilter24.eu/covidnetes/canada-kaktus/internal"
log "github.com/sirupsen/logrus"
)
func ConfigureLogger(cfg *internal.Config) {
switch cfg.LogLevel {
case "Debug":
log.SetLevel(log.DebugLevel)
case "Info":
log.SetLevel(log.InfoLevel)
case "Warn":
log.SetLevel(log.WarnLevel)
case "Error":
log.SetLevel(log.ErrorLevel)
default:
log.SetLevel(log.InfoLevel)
log.Warnf("Home: invalid log level supplied: '%s'", cfg.LogLevel)
}
log.SetFormatter(&log.JSONFormatter{})
log.SetOutput(os.Stdout)
}