update golang version

.circleci/config.yml

@@ -21,7 +21,7 @@ commands:
 jobs:
   build:
     docker:
-      - image: quay.io/cybozu/golang:1.12-bionic
+      - image: quay.io/cybozu/golang:1.13-bionic
       - image: quay.io/coreos/etcd:v3.3
     steps:
       - checkout

go.mod

@@ -7,7 +7,7 @@ require (
 	github.com/coreos/etcd v3.3.15+incompatible
 	github.com/coreos/go-systemd v0.0.0-20181031085051-9002847aa142 // indirect
 	github.com/coreos/ignition v0.30.0
-	github.com/cybozu-go/etcdutil v1.3.3
+	github.com/cybozu-go/etcdutil v1.3.4
 	github.com/cybozu-go/log v1.5.0
 	github.com/cybozu-go/netutil v1.2.0
 	github.com/cybozu-go/well v1.8.1
@@ -37,3 +37,5 @@ require (
 	google.golang.org/genproto v0.0.0-20181127195345-31ac5d88444a // indirect
 	sigs.k8s.io/yaml v1.1.0
 )
+
+go 1.13

mtest/cluster.yml

@@ -29,7 +29,7 @@ volumes:
     name: ignitions
     folder: ignitions
 smbios:
-  serial: 00000001
+  serial: "00000001"
 ---
 kind: Node
 name: host2
@@ -47,7 +47,7 @@ volumes:
     name: ignitions
     folder: ignitions
 smbios:
-  serial: 00000002
+  serial: "00000002"
 ---
 kind: Node
 name: host3
@@ -65,7 +65,7 @@ volumes:
     name: ignitions
     folder: ignitions
 smbios:
-  serial: 00000003
+  serial: "00000003"
 ---
 kind: Node
 name: worker1
@@ -78,7 +78,7 @@ volumes:
 cpu: 1
 memory: 3G
 smbios:
-  serial: 00000004
+  serial: "00000004"
 ---
 kind: Node
 name: worker2
@@ -91,5 +91,5 @@ volumes:
 cpu: 1
 memory: 3G
 smbios:
-  serial: 00000005
+  serial: "00000005"
 tpm: true