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54 lines
2.1 KiB
54 lines
2.1 KiB
package v1
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import (
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"time"
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ocispec "github.com/opencontainers/image-spec/specs-go/v1"
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)
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const DockerOCIImageMediaType = "application/vnd.docker.container.image.v1+json"
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// DockerOCIImage is a ocispec.Image extended with Docker specific Config.
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type DockerOCIImage struct {
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ocispec.Image
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// Shadow ocispec.Image.Config
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Config DockerOCIImageConfig `json:"config,omitempty"`
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}
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// DockerOCIImageConfig is a ocispec.ImageConfig extended with Docker specific fields.
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type DockerOCIImageConfig struct {
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ocispec.ImageConfig
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DockerOCIImageConfigExt
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}
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// DockerOCIImageConfigExt contains Docker-specific fields in DockerImageConfig.
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type DockerOCIImageConfigExt struct {
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Healthcheck *HealthcheckConfig `json:",omitempty"` // Healthcheck describes how to check the container is healthy
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OnBuild []string `json:",omitempty"` // ONBUILD metadata that were defined on the image Dockerfile
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Shell []string `json:",omitempty"` // Shell for shell-form of RUN, CMD, ENTRYPOINT
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}
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// HealthcheckConfig holds configuration settings for the HEALTHCHECK feature.
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type HealthcheckConfig struct {
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// Test is the test to perform to check that the container is healthy.
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// An empty slice means to inherit the default.
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// The options are:
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// {} : inherit healthcheck
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// {"NONE"} : disable healthcheck
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// {"CMD", args...} : exec arguments directly
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// {"CMD-SHELL", command} : run command with system's default shell
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Test []string `json:",omitempty"`
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// Zero means to inherit. Durations are expressed as integer nanoseconds.
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Interval time.Duration `json:",omitempty"` // Interval is the time to wait between checks.
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Timeout time.Duration `json:",omitempty"` // Timeout is the time to wait before considering the check to have hung.
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StartPeriod time.Duration `json:",omitempty"` // The start period for the container to initialize before the retries starts to count down.
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StartInterval time.Duration `json:",omitempty"` // The interval to attempt healthchecks at during the start period
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// Retries is the number of consecutive failures needed to consider a container as unhealthy.
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// Zero means inherit.
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Retries int `json:",omitempty"`
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}
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