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fn: read-only root fs becomes default (#1019)

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* fn: read-only root fs becomes default

Set root fs as read-only by default.

* fn: update doc for FN_DISABLE_READONLY_ROOTFS
This commit is contained in:
Tolga Ceylan
2018-05-30 18:17:28 -07:00
committed by GitHub
parent f4712b4f5b
commit d190167580
4 changed files with 7 additions and 9 deletions
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12
api/agent/config.go
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@@ -31,7 +31,7 @@ type AgentConfig struct {
PreForkNetworks string `json:"pre_fork_networks"`
EnableNBResourceTracker bool `json:"enable_nb_resource_tracker"`
MaxTmpFsInodes uint64 `json:"max_tmpfs_inodes"`
EnableReadOnlyRootFs bool `json:"enable_readonly_rootfs"`
DisableReadOnlyRootFs bool `json:"disable_readonly_rootfs"`
}
const (
@@ -56,14 +56,13 @@ const (
EnvPreForkNetworks = "FN_EXPERIMENTAL_PREFORK_NETWORKS"
EnvEnableNBResourceTracker = "FN_ENABLE_NB_RESOURCE_TRACKER"
EnvMaxTmpFsInodes = "FN_MAX_TMPFS_INODES"
EnvEnableReadOnlyRootFs = "FN_ENABLE_READONLY_ROOTFS"
EnvDisableReadOnlyRootFs = "FN_DISABLE_READONLY_ROOTFS"
MaxDisabledMsecs = time.Duration(math.MaxInt64)
// defaults
DefaultHotPoll = 200 * time.Millisecond
DefaultNBIOHotPoll = 20 * time.Millisecond
DefaultHotPoll = 200 * time.Millisecond
)
func NewAgentConfig() (*AgentConfig, error) {
@@ -106,9 +105,8 @@ func NewAgentConfig() (*AgentConfig, error) {
if _, ok := os.LookupEnv(EnvEnableNBResourceTracker); ok {
cfg.EnableNBResourceTracker = true
}
if _, ok := os.LookupEnv(EnvEnableReadOnlyRootFs); ok {
cfg.EnableReadOnlyRootFs = true
if _, ok := os.LookupEnv(EnvDisableReadOnlyRootFs); ok {
cfg.DisableReadOnlyRootFs = true
}
if cfg.EjectIdle == time.Duration(0) {