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inspect.go
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/
inspect.go
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/*
Copyright 2020 Docker Compose CLI authors
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package cmd
import (
"context"
"fmt"
"github.com/Azure/go-autorest/autorest/to"
"github.com/compose-spec/compose-go/types"
"github.com/docker/compose/v2/cmd/formatter"
"github.com/pkg/errors"
"github.com/spf13/cobra"
"github.com/docker/compose-cli/api/client"
"github.com/docker/compose-cli/api/containers"
)
// InspectCommand inspects into containers
func InspectCommand() *cobra.Command {
cmd := &cobra.Command{
Use: "inspect",
Short: "Inspect containers",
Args: cobra.ExactArgs(1),
RunE: func(cmd *cobra.Command, args []string) error {
return runInspect(cmd.Context(), args[0])
},
}
return cmd
}
func runInspect(ctx context.Context, id string) error {
c, err := client.New(ctx)
if err != nil {
return errors.Wrap(err, "cannot connect to backend")
}
container, err := c.ContainerService().Inspect(ctx, id)
if err != nil {
return err
}
view := getInspectView(container)
j, err := formatter.ToStandardJSON(view)
if err != nil {
return err
}
fmt.Print(j)
return nil
}
// ContainerInspectView inspect view
type ContainerInspectView struct {
ID string
Status string
Image string
Command string `json:",omitempty"`
HostConfig *containers.HostConfig `json:",omitempty"`
Ports []containers.Port `json:",omitempty"`
Config *containers.RuntimeConfig `json:",omitempty"`
Platform string
Healthcheck *containerInspectHealthcheck `json:",omitempty"`
}
type containerInspectHealthcheck struct {
// Test is the command to be run to check the health of the container
Test []string `json:",omitempty"`
// Interval is the period in between the checks
Interval *types.Duration `json:",omitempty"`
// Retries is the number of attempts before declaring the container as healthy or unhealthy
Retries *int `json:",omitempty"`
// StartPeriod is the start delay before starting the checks
StartPeriod *types.Duration `json:",omitempty"`
// Timeout is the timeout in between checks
Timeout *types.Duration `json:",omitempty"`
}
func getInspectView(container containers.Container) ContainerInspectView {
var (
healthcheck *containerInspectHealthcheck
test []string
retries *int
ports []containers.Port
)
if len(container.Ports) > 0 {
ports = container.Ports
}
if !container.Healthcheck.Disable && len(container.Healthcheck.Test) > 0 {
test = container.Healthcheck.Test
if container.Healthcheck.Retries != 0 {
retries = to.IntPtr(container.Healthcheck.Retries)
}
getDurationPtr := func(d types.Duration) *types.Duration {
if d == types.Duration(0) {
return nil
}
return &d
}
healthcheck = &containerInspectHealthcheck{
Test: test,
Retries: retries,
Interval: getDurationPtr(container.Healthcheck.Interval),
StartPeriod: getDurationPtr(container.Healthcheck.StartPeriod),
Timeout: getDurationPtr(container.Healthcheck.Timeout),
}
}
return ContainerInspectView{
ID: container.ID,
Status: container.Status,
Image: container.Image,
Command: container.Command,
Config: container.Config,
HostConfig: container.HostConfig,
Ports: ports,
Platform: container.Platform,
Healthcheck: healthcheck,
}
}