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Add locks on the cluster DB

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This commit is contained in:
Ingo Oppermann
2023-06-22 12:22:25 +02:00
parent b8a975b7c7
commit dc3e7afc52
15 changed files with 786 additions and 19 deletions
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70
cluster/api.go
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@@ -552,13 +552,81 @@ func (a *api) RemoveIdentity(c echo.Context) error {
// @ID cluster-1-core-api-address
// @Produce json
// @Success 200 {string} string
// @Success 500 {array} Error
// @Success 500 {object} Error
// @Router /v1/core [get]
func (a *api) CoreAPIAddress(c echo.Context) error {
address, _ := a.cluster.CoreAPIAddress("")
return c.JSON(http.StatusOK, address)
}
// Lock tries to acquire a named lock
// @Summary Acquire a named lock
// @Description Acquire a named lock
// @Tags v1.0.0
// @ID cluster-1-lock
// @Produce json
// @Param data body client.LockRequest true "Lock request"
// @Param X-Cluster-Origin header string false "Origin ID of request"
// @Success 200 {string} string
// @Success 500 {object} Error
// @Failure 508 {object} Error
// @Router /v1/lock [post]
func (a *api) Lock(c echo.Context) error {
r := client.LockRequest{}
if err := util.ShouldBindJSON(c, &r); err != nil {
return Err(http.StatusBadRequest, "Invalid JSON", "%s", err)
}
origin := c.Request().Header.Get("X-Cluster-Origin")
if origin == a.id {
return Err(http.StatusLoopDetected, "", "breaking circuit")
}
a.logger.Debug().WithField("name", r.Name).Log("Acquire lock")
err := a.cluster.CreateLock(origin, r.Name, r.ValidUntil)
if err != nil {
a.logger.Debug().WithError(err).WithField("name", r.Name).Log("Unable to acquire lock")
return Err(http.StatusInternalServerError, "unable to acquire lock", "%s", err.Error())
}
return c.JSON(http.StatusOK, "OK")
}
// Unlock removes a named lock
// @Summary Remove a lock
// @Description Remove a lock
// @Tags v1.0.0
// @ID cluster-1-unlock
// @Produce json
// @Param name path string true "Lock name"
// @Param X-Cluster-Origin header string false "Origin ID of request"
// @Success 200 {string} string
// @Failure 404 {object} Error
// @Failure 508 {object} Error
// @Router /v1/lock/{name} [delete]
func (a *api) Unlock(c echo.Context) error {
name := util.PathParam(c, "name")
origin := c.Request().Header.Get("X-Cluster-Origin")
if origin == a.id {
return Err(http.StatusLoopDetected, "", "breaking circuit")
}
a.logger.Debug().WithField("name", name).Log("Remove lock request")
err := a.cluster.DeleteLock(origin, name)
if err != nil {
a.logger.Debug().WithError(err).WithField("name", name).Log("Unable to remove lock")
return Err(http.StatusInternalServerError, "unable to remove lock", "%s", err.Error())
}
return c.JSON(http.StatusOK, "OK")
}
// Error represents an error response of the API
type Error struct {
Code int `json:"code" jsonschema:"required" format:"int"`