3
0

134 lines
3.9 KiB
Go

package provision
import (
"context"
"fmt"
"github.com/cortezaproject/corteza/server/pkg/dal"
"path/filepath"
"strings"
"github.com/cortezaproject/corteza/server/pkg/rbac"
"github.com/cortezaproject/corteza/server/pkg/envoy"
"github.com/cortezaproject/corteza/server/pkg/envoy/directory"
"github.com/cortezaproject/corteza/server/pkg/envoy/resource"
es "github.com/cortezaproject/corteza/server/pkg/envoy/store"
"github.com/cortezaproject/corteza/server/pkg/envoy/yaml"
"github.com/cortezaproject/corteza/server/store"
"go.uber.org/zap"
)
// imports configuration files from path(s)
//
// paths can be colon delimited list of absolute or relative paths and/or with glob pattern
func importConfig(ctx context.Context, log *zap.Logger, s store.Storer, paths string) error {
canImportFull, err := canImportConfig(ctx, s)
if !canImportFull {
log.Info("already provisioned, skipping full config import")
} else if err != nil {
return fmt.Errorf("failed to check if config import can be done: %w", err)
}
var (
yd = yaml.Decoder()
nn = make([]resource.Interface, 0, 200)
// @todo
se = es.NewStoreEncoder(s, dal.Service(), &es.EncoderConfig{OnExisting: resource.MergeLeft})
bld = envoy.NewBuilder(se)
sources = make([]string, 0, 16)
)
// verify all paths before doing the actual import
for _, path := range strings.Split(paths, ":") {
if aux, err := filepath.Glob(path); err != nil {
return err
} else {
sources = append(sources, aux...)
}
}
if canImportFull {
log.Info("importing all configs", zap.String("paths", paths))
for _, path := range sources {
log.Info("provisioning from path", zap.String("path", path))
if mm, err := directory.Decode(ctx, path, yd); err != nil {
return err
} else {
nn = append(nn, mm...)
}
}
} else {
nn, err = collectUnimportedConfigs(ctx, log, s, sources, yd)
if err != nil {
return err
}
}
if g, err := bld.Build(ctx, nn...); err != nil {
return err
} else if err = envoy.Encode(ctx, g, se); err != nil {
return err
}
return nil
}
// canImportConfig checks state of the store and
// verifies if Corteza should be provisioned (ie config should be imported)
func canImportConfig(ctx context.Context, s store.Storer) (bool, error) {
rr, _, err := store.SearchRbacRules(ctx, s, rbac.RuleFilter{})
return len(rr) == 0, err
}
func collectUnimportedConfigs(ctx context.Context, log *zap.Logger, s store.Storer, sources []string, dec directory.Decoder) (nn []resource.Interface, err error) {
var (
searchPartialDirectories = []uConfig{
{dir: "000_base", fn: nil},
{dir: "002_templates", fn: provisionPartialTemplates},
{dir: "003_auth", fn: provisionPartialAuthClients},
{dir: "200_federation", fn: nil},
{dir: "300_automation", fn: nil},
}
)
return nn, store.Tx(ctx, s, func(ctx context.Context, s store.Storer) (err error) {
for _, d := range searchPartialDirectories {
// first, check if we need to import at all
if d.fn != nil && !d.fn(ctx, s, log) {
log.Debug("skipping partial config import, no changes", zap.String("dir", d.dir))
continue
}
if list, e := decodeDirectory(ctx, sources, d.dir, dec); e != nil {
return fmt.Errorf("failed to decode configs: %w", err)
} else if len(list) == 0 {
log.Error("failed to execute partial config import, directory not found or no configs", zap.String("dir", d.dir))
return
} else {
log.Debug("partial import ready", zap.String("dir", d.dir))
nn = append(nn, list...)
}
}
return
})
}
func hasSourceDir(sources []string, dir string) (string, bool) {
for _, source := range sources {
if strings.HasSuffix(source, dir) {
return source, true
}
}
return "", false
}
func decodeDirectory(ctx context.Context, sources []string, dir string, dec directory.Decoder) (res []resource.Interface, err error) {
if source, has := hasSourceDir(sources, dir); has {
res, err = directory.Decode(ctx, source, dec)
}
return
}