container

package
v1.20.2 Latest Latest
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 Go to latest Published: Aug 30, 2018 License: Apache-2.0, BSD-2-Clause, BSD-3-Clause, + 2 more Imports: 15 Imported by: 0

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Index

Constants

View Source 
const (

	// DockerHealthCheckType is the type of container health check provided by docker
	DockerHealthCheckType = "docker"

	// AuthTypeECR is to use image pull auth over ECR
	AuthTypeECR = "ecr"

	// AuthTypeASM is to use image pull auth over AWS Secrets Manager
	AuthTypeASM = "asm"
)
View Source 
const (
	// UnrecognizedTransportProtocolErrorName is an error where the protocol of the binding is invalid
	UnrecognizedTransportProtocolErrorName = "UnrecognizedTransportProtocol"
	// UnparseablePortErrorName is an error where the port configuration is invalid
	UnparseablePortErrorName = "UnparsablePort"
)
View Source 
const (
	// DockerContainerMinimumMemoryInBytes is the minimum amount of
	// memory to be allocated to a docker container
	DockerContainerMinimumMemoryInBytes = 4 * 1024 * 1024 // 4MB
)

Variables

This section is empty.

Functions

This section is empty.

Types

type ASMAuthData 

type ASMAuthData struct {
	// CredentialsParameter is set by ACS and specifies the name of the
	// parameter to retrieve from ASM
	CredentialsParameter string `json:"credentialsParameter"`
	// Region is set by ACS and specifies the region to fetch the
	// secret from
	Region string `json:"region"`
	// contains filtered or unexported fields
}

ASMAuthData is the authentication data required for Docker private registry auth

func (*ASMAuthData) GetDockerAuthConfig 

func (auth *ASMAuthData) GetDockerAuthConfig() docker.AuthConfiguration

GetDockerAuthConfig returns the pull credentials in the auth

func (*ASMAuthData) SetDockerAuthConfig 

func (auth *ASMAuthData) SetDockerAuthConfig(dac docker.AuthConfiguration)

SetDockerAuthConfig sets the credentials to pull from ECR in the auth

type Container 

type Container struct {
	// Name is the name of the container specified in the task definition
	Name string
	// Image is the image name specified in the task definition
	Image string
	// ImageID is the local ID of the image used in the container
	ImageID string
	// Command is the command to run in the container which is specified in the task definition
	Command []string
	// CPU is the cpu limitation of the container which is specified in the task definition
	CPU uint `json:"Cpu"`
	// Memory is the memory limitation of the container which is specified in the task definition
	Memory uint
	// Links contains a list of containers to link, corresponding to docker option: --link
	Links []string
	// VolumesFrom contains a list of container's volume to use, corresponding to docker option: --volumes-from
	VolumesFrom []VolumeFrom `json:"volumesFrom"`
	// MountPoints contains a list of volume mount paths
	MountPoints []MountPoint `json:"mountPoints"`
	// Ports contains a list of ports binding configuration
	Ports []PortBinding `json:"portMappings"`
	// Essential denotes whether the container is essential or not
	Essential bool
	// EntryPoint is entrypoint of the container, corresponding to docker option: --entrypoint
	EntryPoint *[]string
	// Environment is the environment variable set in the container
	Environment map[string]string `json:"environment"`
	// Overrides contains the configuration to override of a container
	Overrides ContainerOverrides `json:"overrides"`
	// DockerConfig is the configuration used to create the container
	DockerConfig DockerConfig `json:"dockerConfig"`
	// RegistryAuthentication is the auth data used to pull image
	RegistryAuthentication *RegistryAuthenticationData `json:"registryAuthentication"`
	// HealthCheckType is the mechnism to use for the container health check
	// currently it only supports 'DOCKER'
	HealthCheckType string `json:"healthCheckType,omitempty"`
	// Health contains the health check information of container health check
	Health HealthStatus `json:"-"`
	// LogsAuthStrategy specifies how the logs driver for the container will be
	// authenticated
	LogsAuthStrategy string

	// DesiredStatusUnsafe represents the state where the container should go. Generally,
	// the desired status is informed by the ECS backend as a result of either
	// API calls made to ECS or decisions made by the ECS service scheduler,
	// though the agent may also set the DesiredStatusUnsafe if a different "essential"
	// container in the task exits. The DesiredStatus is almost always either
	// ContainerRunning or ContainerStopped.
	// NOTE: Do not access DesiredStatusUnsafe directly.  Instead, use `GetDesiredStatus`
	// and `SetDesiredStatus`.
	// TODO DesiredStatusUnsafe should probably be private with appropriately written
	// setter/getter.  When this is done, we need to ensure that the UnmarshalJSON
	// is handled properly so that the state storage continues to work.
	DesiredStatusUnsafe apicontainerstatus.ContainerStatus `json:"desiredStatus"`

	// KnownStatusUnsafe represents the state where the container is.
	// NOTE: Do not access `KnownStatusUnsafe` directly.  Instead, use `GetKnownStatus`
	// and `SetKnownStatus`.
	// TODO KnownStatusUnsafe should probably be private with appropriately written
	// setter/getter.  When this is done, we need to ensure that the UnmarshalJSON
	// is handled properly so that the state storage continues to work.
	KnownStatusUnsafe apicontainerstatus.ContainerStatus `json:"KnownStatus"`

	// TransitionDependenciesMap is a map of the dependent container status to other
	// dependencies that must be satisfied in order for this container to transition.
	TransitionDependenciesMap TransitionDependenciesMap `json:"TransitionDependencySet"`

	// SteadyStateDependencies is a list of containers that must be in "steady state" before
	// this one is created
	// Note: Current logic requires that the containers specified here are run
	// before this container can even be pulled.
	//
	// Deprecated: Use TransitionDependencySet instead. SteadyStateDependencies is retained for compatibility with old
	// state files.
	SteadyStateDependencies []string `json:"RunDependencies"`

	// Type specifies the container type. Except the 'Normal' type, all other types
	// are not directly specified by task definitions, but created by the agent. The
	// JSON tag is retained as this field's previous name 'IsInternal' for maintaining
	// backwards compatibility. Please see JSON parsing hooks for this type for more
	// details
	Type ContainerType `json:"IsInternal"`

	// AppliedStatus is the status that has been "applied" (e.g., we've called Pull,
	// Create, Start, or Stop) but we don't yet know that the application was successful.
	// No need to save it in the state file, as agent will synchronize the container status
	// on restart and for some operation eg: pull, it has to be recalled again.
	AppliedStatus apicontainerstatus.ContainerStatus `json:"-"`
	// ApplyingError is an error that occurred trying to transition the container
	// to its desired state. It is propagated to the backend in the form
	// 'Name: ErrorString' as the 'reason' field.
	ApplyingError *apierrors.DefaultNamedError

	// SentStatusUnsafe represents the last KnownStatusUnsafe that was sent to the ECS
	// SubmitContainerStateChange API.
	// TODO SentStatusUnsafe should probably be private with appropriately written
	// setter/getter.  When this is done, we need to ensure that the UnmarshalJSON is
	// handled properly so that the state storage continues to work.
	SentStatusUnsafe apicontainerstatus.ContainerStatus `json:"SentStatus"`

	// MetadataFileUpdated is set to true when we have completed updating the
	// metadata file
	MetadataFileUpdated bool `json:"metadataFileUpdated"`

	// KnownExitCodeUnsafe specifies the exit code for the container.
	// It is exposed outside of the package so that it's marshalled/unmarshalled in
	// the JSON body while saving the state.
	// NOTE: Do not access KnownExitCodeUnsafe directly. Instead, use `GetKnownExitCode`
	// and `SetKnownExitCode`.
	KnownExitCodeUnsafe *int `json:"KnownExitCode"`

	// KnownPortBindingsUnsafe is an array of port bindings for the container.
	KnownPortBindingsUnsafe []PortBinding `json:"KnownPortBindings"`

	// VolumesUnsafe is an array of volume mounts in the container.
	VolumesUnsafe []docker.Mount `json:"-"`

	// SteadyStateStatusUnsafe specifies the steady state status for the container
	// If uninitialized, it's assumed to be set to 'ContainerRunning'. Even though
	// it's not only supposed to be set when the container is being created, it's
	// exposed outside of the package so that it's marshalled/unmarshalled in the
	// the JSON body while saving the state
	SteadyStateStatusUnsafe *apicontainerstatus.ContainerStatus `json:"SteadyStateStatus,omitempty"`
	// contains filtered or unexported fields
}

Container is the internal representation of a container in the ECS agent

func NewContainerWithSteadyState 

func NewContainerWithSteadyState(steadyState apicontainerstatus.ContainerStatus) *Container

NewContainerWithSteadyState creates a new Container object with the specified steady state. Containers that need the non default steady state set will use this method instead of setting it directly

func (*Container) AWSLogAuthExecutionRole 

func (c *Container) AWSLogAuthExecutionRole() bool

AWSLogAuthExecutionRole returns true if the auth is by execution role

func (*Container) BuildContainerDependency 

func (c *Container) BuildContainerDependency(contName string,
	satisfiedStatus apicontainerstatus.ContainerStatus,
	dependentStatus apicontainerstatus.ContainerStatus)

BuildContainerDependency adds a new dependency container and satisfied status to the dependent container

func (*Container) BuildResourceDependency 

func (c *Container) BuildResourceDependency(resourceName string,
	requiredStatus resourcestatus.ResourceStatus,
	dependentStatus apicontainerstatus.ContainerStatus)

BuildResourceDependency adds a new resource dependency by taking in the required status of the resource that satisfies the dependency and the dependent container status, whose transition is dependent on the resource. example: if container's PULLED transition is dependent on volume resource's CREATED status, then RequiredStatus=VolumeCreated and dependentStatus=ContainerPulled

func (*Container) DesiredTerminal 

func (c *Container) DesiredTerminal() bool

DesiredTerminal returns true if the container's desired status is STOPPED

func (*Container) GetAppliedStatus 

func (c *Container) GetAppliedStatus() apicontainerstatus.ContainerStatus

GetAppliedStatus returns the transitioning status of container

func (*Container) GetCreatedAt 

func (c *Container) GetCreatedAt() time.Time

GetCreatedAt sets the timestamp for container's creation time

func (*Container) GetDesiredStatus 

func (c *Container) GetDesiredStatus() apicontainerstatus.ContainerStatus

GetDesiredStatus gets the desired status of the container

func (*Container) GetFinishedAt 

func (c *Container) GetFinishedAt() time.Time

GetFinishedAt sets the timestamp for container's stopped time

func (*Container) GetHealthStatus 

func (c *Container) GetHealthStatus() HealthStatus

GetHealthStatus returns the container health information

func (*Container) GetKnownExitCode 

func (c *Container) GetKnownExitCode() *int

GetKnownExitCode returns the container exit code

func (*Container) GetKnownPortBindings 

func (c *Container) GetKnownPortBindings() []PortBinding

GetKnownPortBindings gets the ports for a container

func (*Container) GetKnownStatus 

func (c *Container) GetKnownStatus() apicontainerstatus.ContainerStatus

GetKnownStatus returns the known status of the container

func (*Container) GetLabels 

func (c *Container) GetLabels() map[string]string

GetLabels gets the labels for a container

func (*Container) GetNextKnownStateProgression 

func (c *Container) GetNextKnownStateProgression() apicontainerstatus.ContainerStatus

GetNextKnownStateProgression returns the state that the container should progress to based on its `KnownState`. The progression is incremental until the container reaches its steady state. From then on, it transitions to `ContainerStopped`.

For example: a. if the steady state of the container is defined as `ContainerRunning`, the progression is: Container: None -> Pulled -> Created -> Running* -> Stopped -> Zombie

b. if the steady state of the container is defined as `ContainerResourcesProvisioned`, the progression is: Container: None -> Pulled -> Created -> Running -> Provisioned* -> Stopped -> Zombie

c. if the steady state of the container is defined as `ContainerCreated`, the progression is: Container: None -> Pulled -> Created* -> Stopped -> Zombie

func (*Container) GetSentStatus 

func (c *Container) GetSentStatus() apicontainerstatus.ContainerStatus

GetSentStatus safely returns the SentStatusUnsafe of the container

func (*Container) GetStartedAt 

func (c *Container) GetStartedAt() time.Time

GetStartedAt sets the timestamp for container's start time

func (*Container) GetSteadyStateStatus 

func (c *Container) GetSteadyStateStatus() apicontainerstatus.ContainerStatus

GetSteadyStateStatus returns the steady state status for the container. If Container.steadyState is not initialized, the default steady state status defined by `defaultContainerSteadyStateStatus` is returned. The 'pause' container's steady state differs from that of other containers, as the 'pause' container can reach its teady state once networking resources have been provisioned for it, which is done in the `ContainerResourcesProvisioned` state

func (*Container) GetVolumes added in v1.20.2 

func (c *Container) GetVolumes() []docker.Mount

GetVolumes returns the volumes mounted in a container

func (*Container) HealthStatusShouldBeReported 

func (c *Container) HealthStatusShouldBeReported() bool

HealthStatusShouldBeReported returns true if the health check is defined in the task definition

func (*Container) IsEssential 

func (c *Container) IsEssential() bool

IsEssential returns whether the container is an essential container or not

func (*Container) IsInternal 

func (c *Container) IsInternal() bool

IsInternal returns true if the container type is either `ContainerEmptyHostVolume` or `ContainerCNIPause`. It returns false otherwise

func (*Container) IsKnownSteadyState 

func (c *Container) IsKnownSteadyState() bool

IsKnownSteadyState returns true if the `KnownState` of the container equals the `steadyState` defined for the container

func (*Container) IsMetadataFileUpdated 

func (c *Container) IsMetadataFileUpdated() bool

IsMetadataFileUpdated returns true if the metadata file has been once the metadata file is ready and will no longer change

func (*Container) IsRunning 

func (c *Container) IsRunning() bool

IsRunning returns true if the container's known status is either RUNNING or RESOURCES_PROVISIONED. It returns false otherwise

func (*Container) KnownTerminal 

func (c *Container) KnownTerminal() bool

KnownTerminal returns true if the container's known status is STOPPED

func (*Container) SetASMDockerAuthConfig 

func (c *Container) SetASMDockerAuthConfig(dac docker.AuthConfiguration)

SetASMDockerAuthConfig add the docker auth config data to the RegistryAuthentication struct held by the container, this is then passed down to the docker client to pull the image

func (*Container) SetAppliedStatus 

func (c *Container) SetAppliedStatus(status apicontainerstatus.ContainerStatus) bool

SetAppliedStatus sets the applied status of container and returns whether the container is already in a transition

func (*Container) SetCreatedAt 

func (c *Container) SetCreatedAt(createdAt time.Time)

SetCreatedAt sets the timestamp for container's creation time

func (*Container) SetDesiredStatus 

func (c *Container) SetDesiredStatus(status apicontainerstatus.ContainerStatus)

SetDesiredStatus sets the desired status of the container

func (*Container) SetFinishedAt 

func (c *Container) SetFinishedAt(finishedAt time.Time)

SetFinishedAt sets the timestamp for container's stopped time

func (*Container) SetHealthStatus 

func (c *Container) SetHealthStatus(health HealthStatus)

SetHealthStatus sets the container health status

func (*Container) SetKnownExitCode 

func (c *Container) SetKnownExitCode(i *int)

SetKnownExitCode sets exit code field in container struct

func (*Container) SetKnownPortBindings 

func (c *Container) SetKnownPortBindings(ports []PortBinding)

SetKnownPortBindings sets the ports for a container

func (*Container) SetKnownStatus 

func (c *Container) SetKnownStatus(status apicontainerstatus.ContainerStatus)

SetKnownStatus sets the known status of the container and update the container applied status

func (*Container) SetLabels 

func (c *Container) SetLabels(labels map[string]string)

SetLabels sets the labels for a container

func (*Container) SetMetadataFileUpdated 

func (c *Container) SetMetadataFileUpdated()

SetMetadataFileUpdated sets the container's MetadataFileUpdated status to true

func (*Container) SetRegistryAuthCredentials 

func (c *Container) SetRegistryAuthCredentials(credential credentials.IAMRoleCredentials)

SetRegistryAuthCredentials sets the credentials for pulling image from ECR

func (*Container) SetSentStatus 

func (c *Container) SetSentStatus(status apicontainerstatus.ContainerStatus)

SetSentStatus safely sets the SentStatusUnsafe of the container

func (*Container) SetStartedAt 

func (c *Container) SetStartedAt(startedAt time.Time)

SetStartedAt sets the timestamp for container's start time

func (*Container) SetVolumes added in v1.20.2 

func (c *Container) SetVolumes(volumes []docker.Mount)

SetVolumes sets the volumes mounted in a container

func (*Container) ShouldPullWithASMAuth 

func (c *Container) ShouldPullWithASMAuth() bool

ShouldPullWithASMAuth returns true if this container needs to retrieve private registry authentication data from ASM

func (*Container) ShouldPullWithExecutionRole 

func (c *Container) ShouldPullWithExecutionRole() bool

ShouldPullWithExecutionRole returns whether this container has its own ECR credentials

func (*Container) String 

func (c *Container) String() string

String returns a human readable string representation of this object

type ContainerDependency 

type ContainerDependency struct {
	// ContainerName defines the container on which a transition depends
	ContainerName string `json:"ContainerName"`
	// SatisfiedStatus defines the status that satisfies the dependency
	SatisfiedStatus apicontainerstatus.ContainerStatus `json:"SatisfiedStatus"`
	// DependentStatus defines the status that cannot be reached until the
	// resource satisfies the dependency
	DependentStatus apicontainerstatus.ContainerStatus `json:"DependentStatus,omitempty"`
}

ContainerDependency defines the relationship between a dependent container and its dependency.

type ContainerOverrides 

type ContainerOverrides struct {
	Command *[]string `json:"command"`
}

ContainerOverrides are overrides applied to the container

func (*ContainerOverrides) UnmarshalJSON 

func (overrides *ContainerOverrides) UnmarshalJSON(b []byte) error

UnmarshalJSON overrides the logic for parsing the JSON-encoded ContainerOverrides data This custom unmarshaller is needed because the json sent to us as a string rather than a fully typed object. We support both formats in the hopes that one day everything will be fully typed Note: the `json:",string"` tag DOES NOT apply here; it DOES NOT work with struct types, only ints/floats/etc. We're basically doing that though We also intentionally fail if there are any keys we were unable to unmarshal into our struct

type ContainerOverridesCopy 

type ContainerOverridesCopy ContainerOverrides

ContainerOverridesCopy is a type alias that doesn't have a custom unmarshaller so we can unmarshal ContainerOverrides data into something without recursing

type ContainerType 

type ContainerType int32

ContainerType represents the type of the internal container created 

const (
	// ContainerNormal represents the container type for 'Normal' containers
	// These are the ones specified in the task definition via container
	// definitions
	ContainerNormal ContainerType = iota
	// ContainerEmptyHostVolume represents the internal container type
	// for the empty volumes container
	ContainerEmptyHostVolume
	// ContainerCNIPause represents the internal container type for the
	// pause container
	ContainerCNIPause
)

func (*ContainerType) MarshalJSON 

func (containerType *ContainerType) MarshalJSON() ([]byte, error)

MarshalJSON overrides the logic for JSON-encoding a ContainerType object

func (ContainerType) String 

func (containerType ContainerType) String() string

String converts the container type enum to a string

func (*ContainerType) UnmarshalJSON 

func (containerType *ContainerType) UnmarshalJSON(b []byte) error

UnmarshalJSON decodes the container type field in the JSON encoded string into the ContainerType object

type DockerConfig 

type DockerConfig struct {
	// Config is the configuration used to create container
	Config *string `json:"config"`
	// HostConfig is the configuration of container related to host resource
	HostConfig *string `json:"hostConfig"`
	// Version specifies the docker client API version to use
	Version *string `json:"version"`
}

DockerConfig represents additional metadata about a container to run. It's remodeled from the `ecsacs` api model file. Eventually it should not exist once this remodeling is refactored out.

type DockerContainer 

type DockerContainer struct {
	DockerID   string `json:"DockerId"`
	DockerName string // needed for linking

	Container *Container
}

DockerContainer is a mapping between containers-as-docker-knows-them and containers-as-we-know-them. This is primarily used in DockerState, but lives here such that tasks and containers know how to convert themselves into Docker's desired config format

func (*DockerContainer) String 

func (dc *DockerContainer) String() string

String returns a human readable string representation of DockerContainer

type DockerEventType 

type DockerEventType int

DockerEventType represents the type of docker events 

const (
	// ContainerStatusEvent represents the container status change events from docker
	// currently create, start, stop, die, restart and oom event will have this type
	ContainerStatusEvent DockerEventType = iota
	// ContainerHealthEvent represents the container health status event from docker
	// "health_status: unhealthy" and "health_status: healthy" will have this type
	ContainerHealthEvent
)

func (DockerEventType) String 

func (eventType DockerEventType) String() string

type ECRAuthData 

type ECRAuthData struct {
	EndpointOverride string `json:"endpointOverride"`
	Region           string `json:"region"`
	RegistryID       string `json:"registryId"`
	UseExecutionRole bool   `json:"useExecutionRole"`
	// contains filtered or unexported fields
}

ECRAuthData is the authentication details for ECR specifying the region, registryID, and possible endpoint override

func (*ECRAuthData) GetPullCredentials 

func (auth *ECRAuthData) GetPullCredentials() credentials.IAMRoleCredentials

GetPullCredentials returns the pull credentials in the auth

func (*ECRAuthData) SetPullCredentials 

func (auth *ECRAuthData) SetPullCredentials(creds credentials.IAMRoleCredentials)

SetPullCredentials sets the credentials to pull from ECR in the auth

type HealthStatus 

type HealthStatus struct {
	// Status is the container health status
	Status apicontainerstatus.ContainerHealthStatus `json:"status,omitempty"`
	// Since is the timestamp when container health status changed
	Since *time.Time `json:"statusSince,omitempty"`
	// ExitCode is the exitcode of health check if failed
	ExitCode int `json:"exitCode,omitempty"`
	// Output is the output of health check
	Output string `json:"output,omitempty"`
}

HealthStatus contains the health check result returned by docker

type MountPoint 

type MountPoint struct {
	SourceVolume  string `json:"sourceVolume"`
	ContainerPath string `json:"containerPath"`
	ReadOnly      bool   `json:"readOnly"`
}

MountPoint describes the in-container location of a Volume and references that Volume by name.

type PortBinding 

type PortBinding struct {
	// ContainerPort is the port inside the container
	ContainerPort uint16
	// HostPort is the port exposed on the host
	HostPort uint16
	// BindIP is the IP address to which the port is bound
	BindIP string `json:"BindIp"`
	// Protocol is the protocol of the port
	Protocol TransportProtocol
}

PortBinding represents a port binding for a container

func PortBindingFromDockerPortBinding 

func PortBindingFromDockerPortBinding(dockerPortBindings map[docker.Port][]docker.PortBinding) ([]PortBinding, apierrors.NamedError)

PortBindingFromDockerPortBinding constructs a PortBinding slice from a docker NetworkSettings.Ports map.

type RegistryAuthenticationData 

type RegistryAuthenticationData struct {
	Type        string       `json:"type"`
	ECRAuthData *ECRAuthData `json:"ecrAuthData"`
	ASMAuthData *ASMAuthData `json:"asmAuthData"`
}

RegistryAuthenticationData is the authentication data sent by the ECS backend. Currently, the only supported authentication data is for ECR.

type ResourceDependency 

type ResourceDependency struct {
	// Name defines the Resource on which a transition depends
	Name string `json:"Name"`
	// RequiredStatus defines the status that satisfies the dependency
	RequiredStatus resourcestatus.ResourceStatus `json:"RequiredStatus"`
}

ResourceDependency defines the relationship between a dependent container and its resource dependency.

func (*ResourceDependency) GetRequiredStatus 

func (rd *ResourceDependency) GetRequiredStatus() resourcestatus.ResourceStatus

GetRequiredStatus returns the required status for the dependency

type TransitionDependenciesMap 

type TransitionDependenciesMap map[apicontainerstatus.ContainerStatus]TransitionDependencySet

TransitionDependenciesMap is a map of the dependent container status to other dependencies that must be satisfied.

func (*TransitionDependenciesMap) UnmarshalJSON 

func (td *TransitionDependenciesMap) UnmarshalJSON(b []byte) error

UnmarshalJSON decodes the TransitionDependencySet tag in the JSON encoded string into the TransitionDependenciesMap object

type TransitionDependencySet 

type TransitionDependencySet struct {
	// ContainerDependencies is the set of containers on which a transition is
	// dependent.
	ContainerDependencies []ContainerDependency `json:"ContainerDependencies"`
	// ResourceDependencies is the set of resources on which a transition is
	// dependent.
	ResourceDependencies []ResourceDependency `json:"ResourceDependencies"`
}

TransitionDependencySet contains dependencies that impact transitions of containers.

type TransportProtocol 

type TransportProtocol int32

TransportProtocol is an enumeration of valid transport protocols 

const (
	// TransportProtocolTCP represents TCP
	TransportProtocolTCP TransportProtocol = iota
	// TransportProtocolUDP represents UDP
	TransportProtocolUDP
)

func NewTransportProtocol 

func NewTransportProtocol(protocol string) (TransportProtocol, error)

NewTransportProtocol returns a TransportProtocol from a string in the task

func (*TransportProtocol) MarshalJSON 

func (tp *TransportProtocol) MarshalJSON() ([]byte, error)

MarshalJSON overrides the logic for JSON-encoding the TransportProtocol type

func (*TransportProtocol) String 

func (tp *TransportProtocol) String() string

String converts TransportProtocol to a string

func (*TransportProtocol) UnmarshalJSON 

func (tp *TransportProtocol) UnmarshalJSON(b []byte) error

UnmarshalJSON for TransportProtocol determines whether to use TCP or UDP, setting TCP as the zero-value but treating other unrecognized values as errors

type VolumeFrom 

type VolumeFrom struct {
	SourceContainer string `json:"sourceContainer"`
	ReadOnly        bool   `json:"readOnly"`
}

VolumeFrom is a volume which references another container as its source.

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