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package define
import (
"fmt"
)
// PullPolicy takes the value PullIfMissing, PullAlways, PullIfNewer, or PullNever.
// N.B.: the enumeration values for this type differ from those used by
// github.com/containers/common/pkg/config.PullPolicy (their zero values
// indicate different policies), so they are not interchangeable.
type PullPolicy int
const (
// PullIfMissing is one of the values that BuilderOptions.PullPolicy
// can take, signalling that the source image should be pulled from a
// registry if a local copy of it is not already present.
PullIfMissing PullPolicy = iota
// PullAlways is one of the values that BuilderOptions.PullPolicy can
// take, signalling that a fresh, possibly updated, copy of the image
// should be pulled from a registry before the build proceeds.
PullAlways
// PullIfNewer is one of the values that BuilderOptions.PullPolicy
// can take, signalling that the source image should only be pulled
// from a registry if a local copy is not already present or if a
// newer version the image is present on the repository.
PullIfNewer
// PullNever is one of the values that BuilderOptions.PullPolicy can
// take, signalling that the source image should not be pulled from a
// registry.
PullNever
)
// String converts a PullPolicy into a string.
func (p PullPolicy) String() string {
switch p {
case PullIfMissing:
return "missing"
case PullAlways:
return "always"
case PullIfNewer:
return "ifnewer"
case PullNever:
return "never"
}
return fmt.Sprintf("unrecognized policy %d", p)
}
var PolicyMap = map[string]PullPolicy{
"missing": PullIfMissing,
"always": PullAlways,
"never": PullNever,
"ifnewer": PullIfNewer,
}
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