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dissociate.go
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dissociate.go
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package calcium
import (
"context"
"github.com/projecteru2/core/log"
"github.com/projecteru2/core/resource/plugins"
resourcetypes "github.com/projecteru2/core/resource/types"
"github.com/projecteru2/core/types"
"github.com/projecteru2/core/utils"
)
// DissociateWorkload dissociate workload from eru, return it resource but not modity it
func (c *Calcium) DissociateWorkload(ctx context.Context, IDs []string) (chan *types.DissociateWorkloadMessage, error) {
logger := log.WithFunc("caliucm.DissociateWorkload").WithField("IDs", IDs)
nodeWorkloadGroup, err := c.groupWorkloadsByNode(ctx, IDs)
if err != nil {
logger.Error(ctx, err, "failed to group workloads by node")
return nil, err
}
ch := make(chan *types.DissociateWorkloadMessage)
_ = c.pool.Invoke(func() {
defer close(ch)
for nodename, workloadIDs := range nodeWorkloadGroup {
if err := c.withNodePodLocked(ctx, nodename, func(ctx context.Context, node *types.Node) error {
for _, workloadID := range workloadIDs { //nolint:scopelint
msg := &types.DissociateWorkloadMessage{WorkloadID: workloadID} //nolint:scopelint
if err := c.withWorkloadLocked(ctx, workloadID, false, func(ctx context.Context, workload *types.Workload) error {
return utils.Txn(
ctx,
// if
func(ctx context.Context) (err error) {
_, _, err = c.rmgr.SetNodeResourceUsage(ctx, node.Name, nil, nil, []resourcetypes.Resources{workload.Resources}, true, plugins.Decr)
return err
},
// then
func(ctx context.Context) error {
return c.store.RemoveWorkload(ctx, workload)
},
// rollback
func(ctx context.Context, failedByCond bool) error {
if failedByCond {
return nil
}
_, _, err = c.rmgr.SetNodeResourceUsage(ctx, node.Name, nil, nil, []resourcetypes.Resources{workload.Resources}, true, plugins.Incr)
return err
},
c.config.GlobalTimeout,
)
}); err != nil {
logger.WithField("id", workloadID).Error(ctx, err, "failed to lock workload")
msg.Error = err
}
ch <- msg
}
_ = c.pool.Invoke(func() { c.RemapResourceAndLog(ctx, logger, node) })
return nil
}); err != nil {
logger.WithField("node", nodename).Error(ctx, err, "failed to lock node")
}
}
})
return ch, nil
}