dotcloud/docker

package config

import (
    "encoding/json"
    "sort"
    "strings"

    "github.com/docker/docker/api/types/filters"
    bkconfig "github.com/moby/buildkit/cmd/buildkitd/config"
)

// BuilderGCRule represents a GC rule for buildkit cache
type BuilderGCRule struct {
    All         bool            `json:",omitempty"`
    Filter      BuilderGCFilter `json:",omitempty"`
    KeepStorage string          `json:",omitempty"`
}

// BuilderGCFilter contains garbage-collection filter rules for a BuildKit builder
type BuilderGCFilter filters.Args

// MarshalJSON returns a JSON byte representation of the BuilderGCFilter
func (x *BuilderGCFilter) MarshalJSON() ([]byte, error) {
    f := filters.Args(*x)
    keys := f.Keys()
    sort.Strings(keys)
    arr := make([]string, 0, len(keys))
    for _, k := range keys {
        values := f.Get(k)
        for _, v := range values {
            arr = append(arr, k+"="+v)
        }
    }
    return json.Marshal(arr)
}

// UnmarshalJSON fills the BuilderGCFilter values structure from JSON input
func (x *BuilderGCFilter) UnmarshalJSON(data []byte) error {
    var arr []string
    f := filters.NewArgs()
    if err := json.Unmarshal(data, &arr); err != nil {
        // backwards compat for deprecated buggy form
        err := json.Unmarshal(data, &f)
        *x = BuilderGCFilter(f)
        return err
    }
    for _, s := range arr {
        name, value, _ := strings.Cut(s, "=")
        name = strings.ToLower(strings.TrimSpace(name))
        value = strings.TrimSpace(value)
        f.Add(name, value)
    }
    *x = BuilderGCFilter(f)
    return nil
}

// BuilderGCConfig contains GC config for a buildkit builder
type BuilderGCConfig struct {
    Enabled            bool            `json:",omitempty"`
    Policy             []BuilderGCRule `json:",omitempty"`
    DefaultKeepStorage string          `json:",omitempty"`
}

// BuilderHistoryConfig contains history config for a buildkit builder
type BuilderHistoryConfig struct {
    MaxAge     bkconfig.Duration `json:",omitempty"`
    MaxEntries int64             `json:",omitempty"`
}

// BuilderEntitlements contains settings to enable/disable entitlements
type BuilderEntitlements struct {
    NetworkHost      *bool `json:"network-host,omitempty"`
    SecurityInsecure *bool `json:"security-insecure,omitempty"`
}

// BuilderConfig contains config for the builder
type BuilderConfig struct {
    GC           BuilderGCConfig       `json:",omitempty"`
    Entitlements BuilderEntitlements   `json:",omitempty"`
    History      *BuilderHistoryConfig `json:",omitempty"`
}