feat(api): add updates API v2

pkg/api/updates/updates_v2.go

@@ -0,0 +1,37 @@
+package updates
+
+import (
+	. "github.com/containrrr/watchtower/pkg/api/prelude"
+	"github.com/containrrr/watchtower/pkg/filters"
+	"github.com/containrrr/watchtower/pkg/types"
+	log "github.com/sirupsen/logrus"
+	"sync"
+)
+
+func postV2(onInvoke InvokedFunc, updateLock *sync.Mutex, monitorOnly bool) HandlerFunc {
+	return func(c *Context) Response {
+		log.Info("Updates triggered by HTTP API request.")
+
+		images := parseImages(c.Request.URL)
+
+		if updateLock.TryLock() {
+			defer updateLock.Unlock()
+
+			result := onInvoke(func(up *types.UpdateParams) {
+				up.Filter = filters.FilterByImage(images, up.Filter)
+				up.MonitorOnly = monitorOnly
+			})
+			return OK(result)
+		} else {
+			return Error(ErrUpdateRunning)
+		}
+	}
+}
+
+func PostV2Check(onInvoke InvokedFunc, updateLock *sync.Mutex) HandlerFunc {
+	return postV2(onInvoke, updateLock, true)
+}
+
+func PostV2Apply(onInvoke InvokedFunc, updateLock *sync.Mutex) HandlerFunc {
+	return postV2(onInvoke, updateLock, false)
+}