Add helper for fetching server details #6
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WalkthroughAdds a new CLI flag to fetch a server by ID, wiring a get flow in cmd/main.go that calls a newly added Client.GetServer method. The client method wraps servers.Get(...).Extract(). The get flow runs after reboot handling and before listing servers, printing ID, Name, and Status. Changes
Sequence Diagram(s)sequenceDiagram
autonumber
participant U as User
participant CLI as cmd/main.go
participant OC as OpenStack Client
participant OS as OpenStack API
U->>CLI: Run binary with flags
alt --reboot flag present
CLI->>OC: RebootServer(ctx, id)
OC->>OS: POST /servers/{id}/action (reboot)
OS-->>OC: 202 Accepted / response
OC-->>CLI: nil / error
end
alt --get flag present
CLI->>OC: GetServer(ctx, getID)
OC->>OS: GET /servers/{getID}
OS-->>OC: Server JSON
OC-->>CLI: *servers.Server
CLI->>U: Print ID / Name / Status
else no --get
CLI->>OC: ListServers(...)
OC->>OS: GET /servers
OS-->>OC: Servers list
OC-->>CLI: []servers.Server
CLI->>U: Print servers
end
note over CLI: get-block runs after reboot handling,<br/>before listing flow
Estimated code review effort🎯 2 (Simple) | ⏱️ ~10 minutes Poem
✨ Finishing Touches
🧪 Generate unit tests
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Actionable comments posted: 1
🧹 Nitpick comments (3)
internal/openstack/compute.go (1)
65-68: Add error context for easier troubleshooting.Wrapping the error with serverID helps when logs aggregate multiple requests.
Apply this diff:
-// GetServer retrieves server details by ID -func (c *Client) GetServer(ctx context.Context, serverID string) (*servers.Server, error) { - return servers.Get(ctx, c.Compute, serverID).Extract() -} +// GetServer retrieves server details by ID. +func (c *Client) GetServer(ctx context.Context, serverID string) (*servers.Server, error) { + s, err := servers.Get(ctx, c.Compute, serverID).Extract() + if err != nil { + return nil, fmt.Errorf("get server %s: %w", serverID, err) + } + return s, nil +}Add missing import:
// outside the selected lines import ( "fmt" )cmd/main.go (2)
54-60: Handle 404 Not Found gracefully instead of exiting fatally (optional).For a read-only query, treating 404 as a user-facing “not found” is friendlier.
Apply this diff:
- server, err := client.GetServer(ctx, *getID) - if err != nil { - log.Fatalf("Failed to get server: %v", err) - } + server, err := client.GetServer(ctx, *getID) + if err != nil { + var nf gophercloud.ErrDefault404 + if errors.As(err, &nf) { + fmt.Printf("Server %s not found\n", *getID) + return + } + log.Fatalf("Failed to get server: %v", err) + }Add imports outside the selected lines:
// outside the selected lines import ( "errors" "github.com/gophercloud/gophercloud/v2" )
54-60: Optional: Add a short timeout for the get call to avoid hanging CLI.Keeps UX snappy when endpoints misbehave.
Outside the selected lines:
// near line 26 ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second) defer cancel() // and add to imports import "time"
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📒 Files selected for processing (2)
cmd/main.go(2 hunks)internal/openstack/compute.go(2 hunks)
🧰 Additional context used
🧬 Code graph analysis (1)
internal/openstack/compute.go (1)
internal/openstack/client.go (1)
Client(12-14)
🔇 Additional comments (2)
internal/openstack/compute.go (1)
65-68: LGTM: Thin wrapper is correct and consistent with existing patterns.Matches gophercloud v2 usage and mirrors GetFlavor.
cmd/main.go (1)
23-23: LGTM: New -get flag is clear and consistent with existing flags.
| if *getID != "" { | ||
| server, err := client.GetServer(ctx, *getID) | ||
| if err != nil { | ||
| log.Fatalf("Failed to get server: %v", err) | ||
| } | ||
| fmt.Printf("Fetched server %s: name=%s status=%s\n", server.ID, server.Name, server.Status) | ||
| } |
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🛠️ Refactor suggestion
Exit after fulfilling -get to avoid unintended follow-on actions.
Currently, the program will still list, create, and delete a server after fetching details. That’s surprising and potentially costly for a “get” operation.
Apply this diff:
if *getID != "" {
server, err := client.GetServer(ctx, *getID)
if err != nil {
log.Fatalf("Failed to get server: %v", err)
}
fmt.Printf("Fetched server %s: name=%s status=%s\n", server.ID, server.Name, server.Status)
+ return
}📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| if *getID != "" { | |
| server, err := client.GetServer(ctx, *getID) | |
| if err != nil { | |
| log.Fatalf("Failed to get server: %v", err) | |
| } | |
| fmt.Printf("Fetched server %s: name=%s status=%s\n", server.ID, server.Name, server.Status) | |
| } | |
| if *getID != "" { | |
| server, err := client.GetServer(ctx, *getID) | |
| if err != nil { | |
| log.Fatalf("Failed to get server: %v", err) | |
| } | |
| fmt.Printf("Fetched server %s: name=%s status=%s\n", server.ID, server.Name, server.Status) | |
| return | |
| } |
🤖 Prompt for AI Agents
In cmd/main.go around lines 54-60, the code handles the -get flag but then
continues executing subsequent list/create/delete logic; change the flow so the
program exits immediately after successfully fetching (or logging the error for)
the server to avoid unintended follow-on actions — i.e., after printing the
fetched server (and after the error log path), return from main or call
os.Exit(0) so no further server operations run.
Summary
GetServerwrapper aroundservers.Get-getin sample CLITesting
go vet ./...go test ./...https://chatgpt.com/codex/tasks/task_e_68ba9765a9108333b80f88428e6f0bc5
Summary by CodeRabbit