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-rw-r--r--pkg/bindings/bindings.go7
-rw-r--r--pkg/bindings/connection.go17
-rw-r--r--pkg/bindings/version.go3
3 files changed, 22 insertions, 5 deletions
diff --git a/pkg/bindings/bindings.go b/pkg/bindings/bindings.go
index 5e2882aae..7e2a444bd 100644
--- a/pkg/bindings/bindings.go
+++ b/pkg/bindings/bindings.go
@@ -8,6 +8,10 @@
package bindings
+import (
+ "github.com/blang/semver"
+)
+
var (
// PTrue is a convenience variable that can be used in bindings where
// a pointer to a bool (optional parameter) is required.
@@ -17,4 +21,7 @@ var (
// a pointer to a bool (optional parameter) is required.
pFalse = false
PFalse = &pFalse
+
+ // _*YES*- podman will fail to run if this value is wrong
+ APIVersion = semver.MustParse("1.0.0")
)
diff --git a/pkg/bindings/connection.go b/pkg/bindings/connection.go
index d83c0482c..d21d55beb 100644
--- a/pkg/bindings/connection.go
+++ b/pkg/bindings/connection.go
@@ -15,6 +15,7 @@ import (
"strings"
"time"
+ "github.com/blang/semver"
"github.com/containers/libpod/pkg/api/types"
jsoniter "github.com/json-iterator/go"
"github.com/pkg/errors"
@@ -143,7 +144,7 @@ func tcpClient(_url *url.URL) (Connection, error) {
}
// pingNewConnection pings to make sure the RESTFUL service is up
-// and running. it should only be used where initializing a connection
+// and running. it should only be used when initializing a connection
func pingNewConnection(ctx context.Context) error {
client, err := GetClient(ctx)
if err != nil {
@@ -154,8 +155,20 @@ func pingNewConnection(ctx context.Context) error {
if err != nil {
return err
}
+
if response.StatusCode == http.StatusOK {
- return nil
+ v, err := semver.ParseTolerant(response.Header.Get("Libpod-API-Version"))
+ if err != nil {
+ return err
+ }
+
+ switch APIVersion.Compare(v) {
+ case 1, 0:
+ // Server's job when client version is equal or older
+ return nil
+ case -1:
+ return errors.Errorf("server API version is too old. client %q server %q", APIVersion.String(), v.String())
+ }
}
return errors.Errorf("ping response was %q", response.StatusCode)
}
diff --git a/pkg/bindings/version.go b/pkg/bindings/version.go
deleted file mode 100644
index c833a644c..000000000
--- a/pkg/bindings/version.go
+++ /dev/null
@@ -1,3 +0,0 @@
-package bindings
-
-func (c Connection) Version() {}