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Merge pull request 'Ready for releasing v0.4' (#22) from feat/retry i…
…nto main Reviewed-on: https://gitea.obmondo.com/EnableIT/kubeaid-bootstrap-script/pulls/22
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,28 @@ | ||
| # syntax=docker/dockerfile:1 | ||
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| #--- Builder stage --- | ||
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| FROM golang:1.23.0 AS builder | ||
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| WORKDIR /app | ||
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| COPY go.mod go.sum ./ | ||
| RUN go mod download | ||
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| COPY . . | ||
| RUN go build -o hetzner-failover-script ./cmd/hetzner-failover-script | ||
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| #--- Packager stage --- | ||
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| FROM golang:1.23.0 AS packages | ||
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| # Set the maintainer label | ||
| LABEL org.opencontainers.image.authors="ashish@obmondo.com, archisman@obmondo.com" | ||
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| RUN apk add --no-cache procps | ||
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| WORKDIR /root/ | ||
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| COPY --from=builder /app/hetzner-failover-script . | ||
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| CMD ["./hetzner-failover-script"] |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,86 @@ | ||
| package main | ||
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| import ( | ||
| "context" | ||
| "log" | ||
| "log/slog" | ||
| "os" | ||
| "time" | ||
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| "github.com/Obmondo/kubeaid-bootstrap-script/utils" | ||
| "github.com/Obmondo/kubeaid-bootstrap-script/utils/assert" | ||
| "github.com/floshodan/hrobot-go/hrobot" | ||
| ) | ||
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| func main() { | ||
| ctx := context.Background() | ||
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| // Read required environment variables. | ||
| var ( | ||
| failoverIP = utils.GetEnv("FAILOVER_IP") | ||
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| nodeIP = utils.GetEnv("NODE_IP") | ||
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| username = os.Getenv("API_USERNAME") // (optional). | ||
| password = os.Getenv("API_PASSWORD") // (optional). | ||
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| apiToken = os.Getenv("API_TOKEN") // (optional). | ||
| ) | ||
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| // Construct Hetzner Robot API client. | ||
| var hetznerRobotClient *hrobot.Client | ||
| switch { | ||
| case len(username) > 0 && len(password) > 0: | ||
| hetznerRobotClient = hrobot.NewClient(hrobot.WithBasicAuth(username, password)) | ||
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| case len(apiToken) > 0: | ||
| hetznerRobotClient = hrobot.NewClient(hrobot.WithToken(apiToken)) | ||
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| default: | ||
| log.Fatalf("Either provide username and password / api token as credentials, to communicate with the Hetzner Robot API") | ||
| } | ||
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| /* | ||
| A Failover IP is an additional IP that you can switch from one server to another. You can order | ||
| it for any Hetzner dedicated root server, and you can switch it to any other Hetzner dedicated | ||
| root server, regardless of location. | ||
| Switching a failover IP takes between 90 and 110 seconds. | ||
| REFERENCE : https://docs.hetzner.com/robot/dedicated-server/ip/failover/. | ||
| */ | ||
| // Hetzner Robot Failover IP API spec : API REFERENCE : https://robot.hetzner.com/doc/webservice/en.html#failover. | ||
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| // Get the Failover IP's current active server IP. | ||
| failoverIPDetails, _, err := hetznerRobotClient.Failover.GetFailoverIP(ctx, failoverIP) | ||
| assert.AssertErrNil(ctx, err, "Failed getting Failover IP details") | ||
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| activeServerIP := failoverIPDetails.ActiveServerIP | ||
| slog.InfoContext(ctx, "Detected active server", slog.String("ip", activeServerIP)) | ||
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| if activeServerIP == nodeIP { | ||
| slog.InfoContext(ctx, "Active server IP is already same as the current server IP") | ||
| return | ||
| } | ||
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| // Update Failover IP to the current node's IP (the current node, on which this script is | ||
| // running) | ||
| // NOTE : Contributed : | ||
| // https://github.com/floshodan/hrobot-go/commit/700f8ef9fdac565129608b3a50583b4b6564ff34. | ||
| _, _, err = hetznerRobotClient.Failover.SwitchFailover(ctx, failoverIP, activeServerIP) | ||
| assert.AssertErrNil(ctx, err, "Failed switching Failover IP to the current node IP") | ||
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| // Wait for the update to complete. | ||
| for { | ||
| failoverIPDetails, _, err := hetznerRobotClient.Failover.GetFailoverIP(ctx, failoverIP) | ||
| assert.AssertErrNil(ctx, err, "Failed getting Failover IP details") | ||
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| if failoverIPDetails.ActiveServerIP == nodeIP { | ||
| slog.InfoContext(ctx, "Successfully updated Failover IP", slog.String("active-server-ip", nodeIP)) | ||
| break | ||
| } | ||
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| slog.InfoContext(ctx, "Waiting for the Failover IP update to complete. Sleeping for a minute....") | ||
| time.Sleep(time.Minute) | ||
| } | ||
| } |
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4 changes: 2 additions & 2 deletions
4
cmd/cluster/cluster.go → ...beaid-bootstrap-script/cluster/cluster.go
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