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fn: size restricted tmpfs /tmp and read-only / support (#1012)

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* fn: size restricted tmpfs /tmp and read-only / support

*) read-only Root Fs Support
*) removed CPUShares from docker API. This was unused.
*) docker.Prepare() refactoring
*) added docker.configureTmpFs() for size limited tmpfs on /tmp
*) tmpfs size support in routes and resource tracker
*) fix fn-test-utils to handle sparse files better in create file

* test typo fix
This commit is contained in:
Tolga Ceylan
2018-05-25 14:12:29 -07:00
committed by GitHub
parent 71dbf9fa57
commit 9584643142
15 changed files with 339 additions and 78 deletions
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23
api/agent/drivers/driver.go
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@@ -119,6 +119,9 @@ type ContainerTask interface {
// Filesystem size limit for the container, in megabytes.
FsSize() uint64
// Tmpfs Filesystem size limit for the container, in megabytes.
TmpFsSize() uint64
// WorkDir returns the working directory to use for the task. Empty string
// leaves it unset.
WorkDir() string
@@ -190,16 +193,16 @@ const (
)
type Config struct {
Docker string `json:"docker"`
DockerNetworks string `json:"docker_networks"`
// TODO CPUShares should likely be on a per container basis
CPUShares int64 `json:"cpu_shares"`
ServerVersion string `json:"server_version"`
PreForkPoolSize uint64 `json:"pre_fork_pool_size"`
PreForkImage string `json:"pre_fork_image"`
PreForkCmd string `json:"pre_fork_cmd"`
PreForkUseOnce uint64 `json:"pre_fork_use_once"`
PreForkNetworks string `json:"pre_fork_networks"`
Docker string `json:"docker"`
DockerNetworks string `json:"docker_networks"`
ServerVersion string `json:"server_version"`
PreForkPoolSize uint64 `json:"pre_fork_pool_size"`
PreForkImage string `json:"pre_fork_image"`
PreForkCmd string `json:"pre_fork_cmd"`
PreForkUseOnce uint64 `json:"pre_fork_use_once"`
PreForkNetworks string `json:"pre_fork_networks"`
MaxTmpFsInodes uint64 `json:"max_tmpfs_inodes"`
EnableReadOnlyRootFs bool `json:"enable_readonly_rootfs"`
}
func average(samples []Stat) (Stat, bool) {