mirror of
https://github.com/docker/compose.git
synced 2025-10-31 11:14:02 +01:00
112 lines
3.6 KiB
Go
112 lines
3.6 KiB
Go
/*
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Copyright 2020 Docker Compose CLI 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 convert
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import (
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"fmt"
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"strconv"
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"strings"
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"github.com/pkg/errors"
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"github.com/compose-spec/compose-go/types"
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"github.com/docker/compose-cli/errdefs"
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)
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// GetRunVolumes return volume configurations for a project and a single service
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// this is meant to be used as a compose project of a single service
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func GetRunVolumes(volumes []string) (map[string]types.VolumeConfig, []types.ServiceVolumeConfig, error) {
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var serviceConfigVolumes []types.ServiceVolumeConfig
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projectVolumes := make(map[string]types.VolumeConfig, len(volumes))
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for i, v := range volumes {
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var vi volumeInput
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err := vi.parse(fmt.Sprintf("volume-%d", i), v)
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if err != nil {
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return nil, nil, err
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}
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readOnly := strconv.FormatBool(vi.readonly)
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projectVolumes[vi.name] = types.VolumeConfig{
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Name: vi.name,
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Driver: azureFileDriverName,
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DriverOpts: map[string]string{
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volumeDriveroptsAccountNameKey: vi.storageAccount,
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volumeDriveroptsShareNameKey: vi.fileshare,
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volumeReadOnly: readOnly,
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},
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}
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sv := types.ServiceVolumeConfig{
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Type: azureFileDriverName,
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Source: vi.name,
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Target: vi.target,
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ReadOnly: vi.readonly,
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}
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serviceConfigVolumes = append(serviceConfigVolumes, sv)
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}
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return projectVolumes, serviceConfigVolumes, nil
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}
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type volumeInput struct {
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name string
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storageAccount string
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fileshare string
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target string
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readonly bool
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}
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// parse takes a candidate string and creates a volumeInput
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// Candidates take the form of <source>[:<target>][:<permissions>]
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// Source is of the form `<storage account>/<fileshare>`
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// If only the source is specified then the target is set to `/run/volumes/<fileshare>`
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// Target is an absolute path in the container of the form `/path/to/mount`
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// Permissions can only be set if the target is set
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// If set, permissions must be `rw` or `ro`
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func (v *volumeInput) parse(name string, candidate string) error {
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v.name = name
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tokens := strings.Split(candidate, ":")
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sourceTokens := strings.Split(tokens[0], "/")
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if len(sourceTokens) != 2 || sourceTokens[0] == "" {
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return errors.Wrapf(errdefs.ErrParsingFailed, "volume specification %q does not include a storage account before '/'", candidate)
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}
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if sourceTokens[1] == "" {
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return errors.Wrapf(errdefs.ErrParsingFailed, "volume specification %q does not include a storage file fileshare after '/'", candidate)
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}
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v.storageAccount = sourceTokens[0]
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v.fileshare = sourceTokens[1]
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switch len(tokens) {
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case 1: // source only
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v.target = "/run/volumes/" + v.fileshare
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case 2: // source and target
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v.target = tokens[1]
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case 3: // source, target, and permissions
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v.target = tokens[1]
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permissions := strings.ToLower(tokens[2])
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if permissions != "ro" && permissions != "rw" {
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return errors.Wrapf(errdefs.ErrParsingFailed, "volume specification %q has an invalid mode %q", candidate, permissions)
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}
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v.readonly = permissions == "ro"
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default:
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return errors.Wrapf(errdefs.ErrParsingFailed, "volume specification %q has invalid format", candidate)
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}
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return nil
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}
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