99 lines
2.5 KiB
Go
99 lines
2.5 KiB
Go
package nomad
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import (
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"context"
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"fmt"
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"time"
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"github.com/hashicorp/errwrap"
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"github.com/hashicorp/nomad/api"
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"github.com/hashicorp/vault/sdk/framework"
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"github.com/hashicorp/vault/sdk/logical"
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)
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// maxTokenNameLength is the maximum length for the name of a Nomad access
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// token
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const maxTokenNameLength = 256
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func pathCredsCreate(b *backend) *framework.Path {
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return &framework.Path{
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Pattern: "creds/" + framework.GenericNameRegex("name"),
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Fields: map[string]*framework.FieldSchema{
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"name": &framework.FieldSchema{
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Type: framework.TypeString,
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Description: "Name of the role",
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},
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},
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Callbacks: map[logical.Operation]framework.OperationFunc{
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logical.ReadOperation: b.pathTokenRead,
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},
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}
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}
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func (b *backend) pathTokenRead(ctx context.Context, req *logical.Request, d *framework.FieldData) (*logical.Response, error) {
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name := d.Get("name").(string)
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conf, _ := b.readConfigAccess(ctx, req.Storage)
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// establish a default
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tokenNameLength := maxTokenNameLength
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if conf != nil && conf.MaxTokenNameLength > 0 {
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tokenNameLength = conf.MaxTokenNameLength
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}
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role, err := b.Role(ctx, req.Storage, name)
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if err != nil {
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return nil, errwrap.Wrapf("error retrieving role: {{err}}", err)
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}
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if role == nil {
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return logical.ErrorResponse(fmt.Sprintf("role %q not found", name)), nil
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}
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// Determine if we have a lease configuration
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leaseConfig, err := b.LeaseConfig(ctx, req.Storage)
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if err != nil {
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return nil, err
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}
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if leaseConfig == nil {
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leaseConfig = &configLease{}
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}
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// Get the nomad client
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c, err := b.client(ctx, req.Storage)
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if err != nil {
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return nil, err
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}
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// Generate a name for the token
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tokenName := fmt.Sprintf("vault-%s-%s-%d", name, req.DisplayName, time.Now().UnixNano())
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// Note: if the given role name is sufficiently long, the UnixNano() portion
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// of the pseudo randomized token name is the part that gets trimmed off,
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// weakening it's randomness.
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if len(tokenName) > tokenNameLength {
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tokenName = tokenName[:tokenNameLength]
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}
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// Create it
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token, _, err := c.ACLTokens().Create(&api.ACLToken{
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Name: tokenName,
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Type: role.TokenType,
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Policies: role.Policies,
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Global: role.Global,
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}, nil)
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if err != nil {
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return nil, err
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}
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// Use the helper to create the secret
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resp := b.Secret(SecretTokenType).Response(map[string]interface{}{
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"secret_id": token.SecretID,
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"accessor_id": token.AccessorID,
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}, map[string]interface{}{
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"accessor_id": token.AccessorID,
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})
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resp.Secret.TTL = leaseConfig.TTL
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resp.Secret.MaxTTL = leaseConfig.MaxTTL
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return resp, nil
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}
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