mirror of https://github.com/perkeep/perkeep.git
75 lines
2.4 KiB
Go
75 lines
2.4 KiB
Go
/*
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Copyright 2014 The Camlistore Authors
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package serverinit
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import (
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"fmt"
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"strings"
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"camlistore.org/pkg/osutil"
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"camlistore.org/pkg/types/serverconfig"
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"camlistore.org/third_party/github.com/bradfitz/gce"
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)
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// DefaultEnvConfig returns the default configuration when running on a known
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// environment. Currently this just includes Google Compute Engine.
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// If the environment isn't known (nil, nil) is returned.
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func DefaultEnvConfig() (*Config, error) {
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if !gce.OnGCE() {
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return nil, nil
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}
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auth := "none"
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user, _ := gce.InstanceAttributeValue("camlistore-username")
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pass, _ := gce.InstanceAttributeValue("camlistore-password")
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confBucket, err := gce.InstanceAttributeValue("camlistore-config-bucket")
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if confBucket == "" || err != nil {
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return nil, fmt.Errorf("VM instance metadata key 'camlistore-config-bucket' not set: %v", err)
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}
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blobBucket, err := gce.InstanceAttributeValue("camlistore-blob-bucket")
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if blobBucket == "" || err != nil {
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return nil, fmt.Errorf("VM instance metadata key 'camlistore-blob-bucket' not set: %v", err)
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}
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if user != "" && pass != "" {
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auth = "userpass:" + user + ":" + pass
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}
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if v := osutil.SecretRingFile(); !strings.HasPrefix(v, "/gcs/") {
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return nil, fmt.Errorf("Internal error: secret ring path on GCE should be at /gcs/, not %q", v)
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}
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keyId, secRing, err := getOrMakeKeyring()
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if err != nil {
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return nil, err
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}
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ipOrHost, _ := gce.ExternalIP()
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host, _ := gce.InstanceAttributeValue("camlistore-hostname")
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if host != "" {
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ipOrHost = host
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}
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return genLowLevelConfig(&serverconfig.Config{
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Auth: auth,
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BaseURL: fmt.Sprintf("https://%s", ipOrHost),
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HTTPS: true,
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Listen: "0.0.0.0:443",
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Identity: keyId,
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IdentitySecretRing: secRing,
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GoogleCloudStorage: ":" + strings.TrimSuffix(strings.TrimPrefix(blobBucket, "gs://"), "/"),
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KVFile: "/index.kv", // TODO: switch to Cloud SQL or local MySQL
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})
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}
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