/
importer.go
90 lines (76 loc) · 2.14 KB
/
importer.go
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// Copyright 2019 The Berglas 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 auto
import (
"context"
"fmt"
"log"
"os"
"os/signal"
"strconv"
"strings"
"syscall"
"github.com/GoogleCloudPlatform/berglas/v2/pkg/berglas"
"github.com/GoogleCloudPlatform/berglas/v2/pkg/berglas/logging"
)
var (
// continueOnError controls whether Berglas should continue on error or panic.
// The default behavior is to panic.
continueOnError, _ = strconv.ParseBool(os.Getenv("BERGLAS_CONTINUE_ON_ERROR"))
// logLevel is the log level to use.
logLevel = os.Getenv("BERGLAS_LOG_LEVEL")
// logFormat is the log level to use.
logFormat = os.Getenv("BERGLAS_LOG_FORMAT")
)
func init() {
ctx, done := signal.NotifyContext(context.Background(),
syscall.SIGINT, syscall.SIGTERM)
defer done()
logger, err := logging.New(os.Stderr, logLevel, logFormat, false)
if err != nil {
handleError(fmt.Errorf("failed to initialize logger: %w", err))
return
}
ctx = logging.WithLogger(ctx, logger)
client, err := berglas.New(ctx)
if err != nil {
handleError(fmt.Errorf("failed to initialize berglas client: %w", err))
return
}
for _, e := range os.Environ() {
p := strings.SplitN(e, "=", 2)
if len(p) < 2 {
continue
}
k, v := p[0], p[1]
if !berglas.IsReference(v) {
continue
}
s, err := client.Resolve(ctx, v)
if err != nil {
handleError(fmt.Errorf("failed to parse %q: %w", k, err))
continue
}
if err := os.Setenv(k, string(s)); err != nil {
handleError(fmt.Errorf("failed to set %q: %w", k, err))
continue
}
}
}
func handleError(err error) {
log.Printf("%s\n", err)
if !continueOnError {
panic(err)
}
}