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redact detailed errors from healthz and expose in default policy

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This commit is contained in:
deads2k
2017-02-21 11:34:05 -05:00
parent 7a06e41f93
commit 4cd0b7cdbe
4 changed files with 9 additions and 7 deletions
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4
plugin/pkg/auth/authorizer/rbac/bootstrappolicy/policy.go
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@@ -94,10 +94,10 @@ func ClusterRoles() []rbac.ClusterRole {
},
},
{
// a role which provides just enough power to discovery API versions for negotiation
// a role which provides just enough power to determine if the server is ready and discover API versions for negotiation
ObjectMeta: metav1.ObjectMeta{Name: "system:discovery"},
Rules: []rbac.PolicyRule{
rbac.NewRule("get").URLs("/version", "/swaggerapi", "/swaggerapi/*", "/api", "/api/*", "/apis", "/apis/*").RuleOrDie(),
rbac.NewRule("get").URLs("/healthz", "/version", "/swaggerapi", "/swaggerapi/*", "/api", "/api/*", "/apis", "/apis/*").RuleOrDie(),
},
},
{

1
plugin/pkg/auth/authorizer/rbac/bootstrappolicy/testdata/cluster-roles.yaml vendored
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@@ -369,6 +369,7 @@ items:
- /api/*
- /apis
- /apis/*
- /healthz
- /swaggerapi
- /swaggerapi/*
- /version

7
staging/src/k8s.io/apiserver/pkg/server/healthz/healthz.go
View File

@@ -96,9 +96,10 @@ func handleRootHealthz(checks ...HealthzChecker) http.HandlerFunc {
failed := false
var verboseOut bytes.Buffer
for _, check := range checks {
err := check.Check(r)
if err != nil {
fmt.Fprintf(&verboseOut, "[-]%v failed: %v\n", check.Name(), err)
if check.Check(r) != nil {
// don't include the error since this endpoint is public. If someone wants more detail
// they should have explicit permission to the detailed checks.
fmt.Fprintf(&verboseOut, "[-]%v failed: reason withheld\n", check.Name())
failed = true
} else {
fmt.Fprintf(&verboseOut, "[+]%v ok\n", check.Name())

4
staging/src/k8s.io/apiserver/pkg/server/healthz/healthz_test.go
View File

@@ -51,10 +51,10 @@ func TestMulitipleChecks(t *testing.T) {
{"/healthz?verbose", "[+]ping ok\nhealthz check passed\n", http.StatusOK, false},
{"/healthz/ping", "ok", http.StatusOK, false},
{"/healthz", "ok", http.StatusOK, false},
{"/healthz?verbose", "[+]ping ok\n[-]bad failed: this will fail\nhealthz check failed\n", http.StatusInternalServerError, true},
{"/healthz?verbose", "[+]ping ok\n[-]bad failed: reason withheld\nhealthz check failed\n", http.StatusInternalServerError, true},
{"/healthz/ping", "ok", http.StatusOK, true},
{"/healthz/bad", "internal server error: this will fail\n", http.StatusInternalServerError, true},
{"/healthz", "[+]ping ok\n[-]bad failed: this will fail\nhealthz check failed\n", http.StatusInternalServerError, true},
{"/healthz", "[+]ping ok\n[-]bad failed: reason withheld\nhealthz check failed\n", http.StatusInternalServerError, true},
}
for i, test := range tests {