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name: Build | ||
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on: | ||
workflow_call: | ||
inputs: | ||
tags: | ||
required: true | ||
type: string | ||
ref: | ||
required: false | ||
type: string | ||
default: "" | ||
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jobs: | ||
build_server: | ||
name: Build server image | ||
runs-on: ubuntu-latest | ||
permissions: | ||
packages: write | ||
steps: | ||
- name: Checkout code | ||
uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4 | ||
with: | ||
ref: "${{ inputs.ref }}" | ||
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- name: Setup go | ||
uses: actions/setup-go@0a12ed9d6a96ab950c8f026ed9f722fe0da7ef32 # v5 | ||
with: | ||
go-version-file: "./server/go.mod" | ||
cache: false | ||
- name: Generate backend license text | ||
working-directory: "./server" | ||
run: | | ||
go install github.com/google/go-licenses@latest | ||
go-licenses report --ignore github.com/bradenrayhorn/nunc --confidence_threshold 0.85 --template ./licenses.tpl --logtostderr=false ./... > ./licenses.txt | ||
- name: Set up QEMU | ||
uses: docker/setup-qemu-action@49b3bc8e6bdd4a60e6116a5414239cba5943d3cf # v3 | ||
with: | ||
platforms: 'arm64,amd64' | ||
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- name: Login to registry | ||
uses: docker/login-action@9780b0c442fbb1117ed29e0efdff1e18412f7567 # v3 | ||
with: | ||
registry: ghcr.io | ||
username: ${{ github.actor }} | ||
password: ${{ secrets.GITHUB_TOKEN }} | ||
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- name: Set up Docker Buildx | ||
uses: docker/setup-buildx-action@988b5a0280414f521da01fcc63a27aeeb4b104db # v3 | ||
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- name: Build and push | ||
uses: docker/build-push-action@5cd11c3a4ced054e52742c5fd54dca954e0edd85 # v6 | ||
with: | ||
push: true | ||
provenance: false | ||
context: "." | ||
tags: "${{ inputs.tags }}" | ||
platforms: linux/amd64,linux/arm64 | ||
|
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name: Build image | ||
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on: | ||
push: | ||
branches: | ||
- main | ||
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jobs: | ||
build: | ||
uses: ./.github/workflows/_build.yml | ||
permissions: | ||
packages: write | ||
with: | ||
tags: ghcr.io/bradenrayhorn/nunc:next,ghcr.io/bradenrayhorn/nunc:next-${{ github.sha }} | ||
|
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name: Pull request | ||
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on: | ||
pull_request: | ||
types: [opened, synchronize, reopened] | ||
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jobs: | ||
lint: | ||
name: Lint Go | ||
runs-on: ubuntu-latest | ||
defaults: | ||
run: | ||
working-directory: ./server | ||
steps: | ||
- name: Checkout code | ||
uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4 | ||
- name: Setup go | ||
uses: actions/setup-go@0a12ed9d6a96ab950c8f026ed9f722fe0da7ef32 # v5 | ||
with: | ||
go-version-file: "./server/go.mod" | ||
cache: false | ||
- name: Install | ||
run: | | ||
go install github.com/gordonklaus/ineffassign@latest | ||
go install honnef.co/go/tools/cmd/staticcheck@latest | ||
go install github.com/kisielk/errcheck@latest | ||
go install github.com/google/go-licenses@latest | ||
- name: format | ||
if: always() | ||
run: test -z $(gofmt -l ./.. | grep -v vendor) | ||
- name: vet | ||
if: always() | ||
run: go vet ./... | ||
- name: errcheck | ||
if: always() | ||
run: errcheck ./... | ||
- name: ineffassign | ||
if: always() | ||
run: ineffassign ./... | ||
- name: staticcheck | ||
if: always() | ||
run: staticcheck ./... | ||
- name: license | ||
if: always() | ||
run: go-licenses check --ignore github.com/bradenrayhorn/ced --confidence_threshold 0.85 ./... | ||
|
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FROM golang:1.22@sha256:829eff99a4b2abffe68f6a3847337bf6455d69d17e49ec1a97dac78834754bd6 AS buildgo | ||
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RUN mkdir /app | ||
COPY . /app | ||
WORKDIR /app | ||
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RUN CGO_ENABLED=0 go build . | ||
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FROM alpine@sha256:0a4eaa0eecf5f8c050e5bba433f58c052be7587ee8af3e8b3910ef9ab5fbe9f5 | ||
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RUN mkdir /app | ||
COPY --from=buildgo /app/nunc /app/ | ||
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COPY --from=buildgo /usr/local/go/LICENSE /app/GO-LICENSE | ||
COPY licenses.txt /app/THIRD-PARTY-LICENSES | ||
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CMD ["/app/nunc"] | ||
|
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MIT License | ||
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Copyright (c) 2024 Braden Rayhorn | ||
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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: | ||
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The above copyright notice and this permission notice shall be included in all | ||
copies or substantial portions of the Software. | ||
|
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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. | ||
|
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# nunc | ||
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Small service to automatically deploy self-hosted GitHub runners on-demand via Hetzner server hosting. | ||
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## Use case | ||
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As of creation, GitHub does not provide arm64 based runners individuals using GitHub actions. | ||
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Using GitHub-hosted runners to build an arm64 variant of a Docker image requires emulation on the | ||
x86 GitHub-hosted runners which can be slow. | ||
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A self-hosted arm64 worker can be connected to a repository, but paying to keep the server running | ||
24/7 can be expensive for non-frequent use. | ||
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nunc will listen to GitHub workflow events and create a new Hetzner server on-demand when a workflow | ||
job requests one. The server will be destroyed after the job completes. Depending on the server instance | ||
required, this could cost as little as 0.01 Euros per job run. | ||
|
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package main | ||
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import ( | ||
"fmt" | ||
"os" | ||
) | ||
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type config struct { | ||
hetznerToken string | ||
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githubToken string | ||
githubRepository string | ||
githubWebhookKey string | ||
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sizeAMD64 string | ||
sizeARM64 string | ||
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port string | ||
} | ||
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const envPrefix = "NUNC_" | ||
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func newConfig() (config, error) { | ||
hetznerToken := os.Getenv(envPrefix + "HETZNER_TOKEN") | ||
if hetznerToken == "" { | ||
return config{}, fmt.Errorf("env NUNC_HETZNER_TOKEN is required") | ||
} | ||
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githubToken := os.Getenv(envPrefix + "GITHUB_TOKEN") | ||
if githubToken == "" { | ||
return config{}, fmt.Errorf("env NUNC_GITHUB_TOKEN is required") | ||
} | ||
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githubRepository := os.Getenv(envPrefix + "GITHUB_REPOSITORY") | ||
if githubRepository == "" { | ||
return config{}, fmt.Errorf("env NUNC_GITHUB_REPOSITORY is required") | ||
} | ||
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githubWebhookKey := os.Getenv(envPrefix + "GITHUB_WEBHOOK_KEY") | ||
if githubWebhookKey == "" { | ||
return config{}, fmt.Errorf("env NUNC_GITHUB_WEBHOOK_KEY is required") | ||
} | ||
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sizeAMD64 := os.Getenv(envPrefix + "INSTANCE_X86") | ||
if sizeAMD64 == "" { | ||
return config{}, fmt.Errorf("env NUNC_INSTANCE_X86 is required") | ||
} | ||
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sizeARM64 := os.Getenv(envPrefix + "INSTANCE_ARM64") | ||
if sizeARM64 == "" { | ||
return config{}, fmt.Errorf("env NUNC_INSTANCE_ARM64 is required") | ||
} | ||
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port := os.Getenv(envPrefix + "HTTP_PORT") | ||
if port == "" { | ||
port = "8000" | ||
} | ||
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return config{ | ||
hetznerToken: hetznerToken, | ||
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githubToken: githubToken, | ||
githubRepository: githubRepository, | ||
githubWebhookKey: githubWebhookKey, | ||
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sizeAMD64: sizeAMD64, | ||
sizeARM64: sizeARM64, | ||
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port: port, | ||
}, nil | ||
} |
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package main | ||
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import ( | ||
"context" | ||
"fmt" | ||
"strings" | ||
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"github.com/google/go-github/v66/github" | ||
) | ||
|
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type githubClient struct { | ||
client *github.Client | ||
owner string | ||
repo string | ||
} | ||
|
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func newGithubClient(token string, repository string) (*githubClient, error) { | ||
parts := strings.Split(repository, "/") | ||
if len(parts) != 2 { | ||
return nil, fmt.Errorf("malformed repository path: %s", repository) | ||
} | ||
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client := github.NewClient(nil).WithAuthToken(token) | ||
return &githubClient{ | ||
client: client, | ||
owner: parts[0], | ||
repo: parts[1], | ||
}, nil | ||
} | ||
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func (g *githubClient) getRunners() ([]*github.Runner, error) { | ||
runners, _, err := g.client.Actions.ListRunners(context.Background(), g.owner, g.repo, &github.ListRunnersOptions{}) | ||
if err != nil { | ||
return nil, err | ||
} | ||
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return runners.Runners, nil | ||
} | ||
|
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func (g *githubClient) deleteRunner(id int64) error { | ||
_, err := g.client.Actions.RemoveRunner(context.Background(), g.owner, g.repo, id) | ||
|
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return err | ||
} | ||
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func (g *githubClient) runnerToken() (string, error) { | ||
token, _, err := g.client.Actions.CreateRegistrationToken(context.Background(), g.owner, g.repo) | ||
|
||
if err != nil { | ||
return "", err | ||
} | ||
|
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return token.GetToken(), nil | ||
} |
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module github.com/bradenrayhorn/nunc | ||
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go 1.22.1 | ||
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require ( | ||
github.com/google/go-github/v66 v66.0.0 | ||
github.com/hetznercloud/hcloud-go/v2 v2.14.0 | ||
golang.org/x/crypto v0.28.0 | ||
) | ||
|
||
require ( | ||
github.com/beorn7/perks v1.0.1 // indirect | ||
github.com/cespare/xxhash/v2 v2.3.0 // indirect | ||
github.com/google/go-querystring v1.1.0 // indirect | ||
github.com/klauspost/compress v1.17.9 // indirect | ||
github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect | ||
github.com/prometheus/client_golang v1.20.5 // indirect | ||
github.com/prometheus/client_model v0.6.1 // indirect | ||
github.com/prometheus/common v0.55.0 // indirect | ||
github.com/prometheus/procfs v0.15.1 // indirect | ||
golang.org/x/net v0.30.0 // indirect | ||
golang.org/x/sys v0.26.0 // indirect | ||
golang.org/x/text v0.19.0 // indirect | ||
google.golang.org/protobuf v1.34.2 // indirect | ||
) |
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---|---|---|
@@ -0,0 +1,48 @@ | ||
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 v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c= | ||
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= | ||
github.com/google/go-cmp v0.5.2/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE= | ||
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/go-github/v66 v66.0.0 h1:ADJsaXj9UotwdgK8/iFZtv7MLc8E8WBl62WLd/D/9+M= | ||
github.com/google/go-github/v66 v66.0.0/go.mod h1:+4SO9Zkuyf8ytMj0csN1NR/5OTR+MfqPp8P8dVlcvY4= | ||
github.com/google/go-querystring v1.1.0 h1:AnCroh3fv4ZBgVIf1Iwtovgjaw/GiKJo8M8yD/fhyJ8= | ||
github.com/google/go-querystring v1.1.0/go.mod h1:Kcdr2DB4koayq7X8pmAG4sNG59So17icRSOU623lUBU= | ||
github.com/hetznercloud/hcloud-go/v2 v2.14.0 h1:WQW72DuOGqT486F0eNp92lDH5cwDTmyn9Mhin93m1To= | ||
github.com/hetznercloud/hcloud-go/v2 v2.14.0/go.mod h1:h8sHav+27Xa+48cVMAvAUMELov5h298Ilg2vflyTHgg= | ||
github.com/klauspost/compress v1.17.9 h1:6KIumPrER1LHsvBVuDa0r5xaG0Es51mhhB9BQB2qeMA= | ||
github.com/klauspost/compress v1.17.9/go.mod h1:Di0epgTjJY877eYKx5yC51cX2A2Vl2ibi7bDH9ttBbw= | ||
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/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/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 v1.20.5 h1:cxppBPuYhUnsO6yo/aoRol4L7q7UFfdm+bR9r+8l63Y= | ||
github.com/prometheus/client_golang v1.20.5/go.mod h1:PIEt8X02hGcP8JWbeHyeZ53Y/jReSnHgO035n//V5WE= | ||
github.com/prometheus/client_model v0.6.1 h1:ZKSh/rekM+n3CeS952MLRAdFwIKqeY8b62p8ais2e9E= | ||
github.com/prometheus/client_model v0.6.1/go.mod h1:OrxVMOVHjw3lKMa8+x6HeMGkHMQyHDk9E3jmP2AmGiY= | ||
github.com/prometheus/common v0.55.0 h1:KEi6DK7lXW/m7Ig5i47x0vRzuBsHuvJdi5ee6Y3G1dc= | ||
github.com/prometheus/common v0.55.0/go.mod h1:2SECS4xJG1kd8XF9IcM1gMX6510RAEL65zxzNImwdc8= | ||
github.com/prometheus/procfs v0.15.1 h1:YagwOFzUgYfKKHX6Dr+sHT7km/hxC76UB0learggepc= | ||
github.com/prometheus/procfs v0.15.1/go.mod h1:fB45yRUv8NstnjriLhBQLuOUt+WW4BsoGhij/e3PBqk= | ||
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= | ||
golang.org/x/crypto v0.28.0 h1:GBDwsMXVQi34v5CCYUm2jkJvu4cbtru2U4TN2PSyQnw= | ||
golang.org/x/crypto v0.28.0/go.mod h1:rmgy+3RHxRZMyY0jjAJShp2zgEdOqj2AO7U0pYmeQ7U= | ||
golang.org/x/net v0.30.0 h1:AcW1SDZMkb8IpzCdQUaIq2sP4sZ4zw+55h6ynffypl4= | ||
golang.org/x/net v0.30.0/go.mod h1:2wGyMJ5iFasEhkwi13ChkO/t1ECNC4X4eBKkVFyYFlU= | ||
golang.org/x/sys v0.26.0 h1:KHjCJyddX0LoSTb3J+vWpupP9p0oznkqVk/IfjymZbo= | ||
golang.org/x/sys v0.26.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA= | ||
golang.org/x/term v0.25.0 h1:WtHI/ltw4NvSUig5KARz9h521QvRC8RmF/cuYqifU24= | ||
golang.org/x/term v0.25.0/go.mod h1:RPyXicDX+6vLxogjjRxjgD2TKtmAO6NZBsBRfrOLu7M= | ||
golang.org/x/text v0.19.0 h1:kTxAhCbGbxhK0IwgSKiMO5awPoDQ0RpfiVYBfK860YM= | ||
golang.org/x/text v0.19.0/go.mod h1:BuEKDfySbSR4drPmRPG/7iBdf8hvFMuRexcpahXilzY= | ||
golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= | ||
google.golang.org/protobuf v1.34.2 h1:6xV6lTsCfpGD21XK49h7MhtcApnLqkfYgPcdHftf6hg= | ||
google.golang.org/protobuf v1.34.2/go.mod h1:qYOHts0dSfpeUzUFpOMr/WGzszTmLH+DiWniOlNbLDw= | ||
gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA= | ||
gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= |
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