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security policy appended to container's environment variables #1219

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Merged
anmaxvl merged 3 commits into from
Nov 11, 2021
Merged

security policy appended to container's environment variables #1219

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eb3e6a0
security policy appended to environment variables so that containers …
Nov 5, 2021
5bbe7f5
policyEnforcer casting part of the if statement
Nov 11, 2021
3751f07
re[hrase comment on the security policy environment variable
Nov 11, 2021
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13 changes: 13 additions & 0 deletions internal/guest/runtime/hcsv2/uvm.go
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Original file line number Diff line number Diff line change
Expand Up @@ -209,6 +209,19 @@ func (h *Host) CreateContainer(ctx context.Context, id string, settings *prot.VM
}()
}

// Export security policy as one of the process's environment variables so that application and sidecar
// containers can have access to it. The security policy is required by containers which need to extract
// init-time claims found in the security policy.
//
// We append the variable after the security policy enforcing logic completes so as to bypass it; the
// security policy variable cannot be included in the security policy as its value is not available
// security policy construction time.

if policyEnforcer, ok := (h.securityPolicyEnforcer).(*securitypolicy.StandardSecurityPolicyEnforcer); ok {
secPolicyEnv := fmt.Sprintf("SECURITY_POLICY=%s", policyEnforcer.EncodedSecurityPolicy)
settings.OCISpecification.Process.Env = append(settings.OCISpecification.Process.Env, secPolicyEnv)
}

// Create the BundlePath
if err := os.MkdirAll(settings.OCIBundlePath, 0700); err != nil {
return nil, errors.Wrapf(err, "failed to create OCIBundlePath: '%s'", settings.OCIBundlePath)
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