forked from aws/amazon-ecs-agent
/
errors.go
82 lines (66 loc) · 2.59 KB
/
errors.go
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// Copyright 2014-2015 Amazon.com, Inc. or its affiliates. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License"). You may
// not use this file except in compliance with the License. A copy of the
// License is located at
//
// http://aws.amazon.com/apache2.0/
//
// or in the "license" file accompanying this file. This file 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 engine
import (
"time"
"github.com/aws/amazon-ecs-agent/agent/api"
)
// impossibleTransitionError is an error that occurs when an event causes a
// container to try and transition to a state that it cannot be moved to
type impossibleTransitionError struct {
state api.ContainerStatus
}
func (err *impossibleTransitionError) Error() string {
return "Cannot transition to " + err.state.String()
}
func (err *impossibleTransitionError) ErrorName() string { return "ImpossibleStateTransitionError" }
type DockerTimeoutError struct {
duration time.Duration
transition string
}
func (err *DockerTimeoutError) Error() string {
return "Could not transition to " + err.transition + "; timed out after waiting " + err.duration.String()
}
func (err *DockerTimeoutError) ErrorName() string { return "DockerTimeoutError" }
type ContainerVanishedError struct{}
func (err ContainerVanishedError) Error() string { return "No container matching saved ID found" }
func (err ContainerVanishedError) ErrorName() string { return "ContainerVanishedError" }
type CannotXContainerError struct {
transition string
msg string
}
func (err CannotXContainerError) Error() string { return err.msg }
func (err CannotXContainerError) ErrorName() string {
return "Cannot" + err.transition + "ContainerError"
}
type OutOfMemoryError struct{}
func (err OutOfMemoryError) Error() string { return "Container killed due to memory usage" }
func (err OutOfMemoryError) ErrorName() string { return "OutOfMemoryError" }
// DockerStateError is a wrapper around the error docker puts in the '.State.Error' field of its inspect output.
type DockerStateError struct {
dockerError string
name string
}
func NewDockerStateError(err string) DockerStateError {
// Add stringmatching logic as needed to provide better output than docker
return DockerStateError{
dockerError: err,
name: "DockerStateError",
}
}
func (err DockerStateError) Error() string {
return err.dockerError
}
func (err DockerStateError) ErrorName() string {
return err.name
}