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| 1 | +package docker |
| 2 | + |
| 3 | +import ( |
| 4 | + "github.com/docker/docker/api/types" |
| 5 | + "github.com/docker/docker/api/types/events" |
| 6 | + "github.com/docker/docker/api/types/filters" |
| 7 | + "github.com/docker/docker/api/types/network" |
| 8 | + "github.com/docker/docker/api/types/swarm" |
| 9 | + "github.com/docker/docker/api/types/volume" |
| 10 | + "github.com/raghavyuva/nixopus-api/internal/config" |
| 11 | +) |
| 12 | + |
| 13 | +func (s *DockerService) InitCluster() error { |
| 14 | + config := config.AppConfig |
| 15 | + |
| 16 | + // Use localhost as default advertise address if SSH host is not configured |
| 17 | + // Useful during development |
| 18 | + advertiseAddr := "127.0.0.1:2377" |
| 19 | + if config.SSH.Host != "" { |
| 20 | + advertiseAddr = config.SSH.Host + ":2377" |
| 21 | + } |
| 22 | + |
| 23 | + _, err := s.Cli.SwarmInit(s.Ctx, swarm.InitRequest{ |
| 24 | + ListenAddr: "0.0.0.0:2377", |
| 25 | + // Address that Hosts can use to reach the master node |
| 26 | + AdvertiseAddr: advertiseAddr, |
| 27 | + }) |
| 28 | + if err != nil { |
| 29 | + return err |
| 30 | + } |
| 31 | + |
| 32 | + return nil |
| 33 | +} |
| 34 | + |
| 35 | +func (s *DockerService) JoinCluster() error { |
| 36 | + config := config.AppConfig |
| 37 | + |
| 38 | + // Use localhost as default advertise address if SSH host is not configured |
| 39 | + advertiseAddr := "127.0.0.1:2377" |
| 40 | + if config.SSH.Host != "" { |
| 41 | + advertiseAddr = config.SSH.Host + ":2377" |
| 42 | + } |
| 43 | + |
| 44 | + err := s.Cli.SwarmJoin(s.Ctx, swarm.JoinRequest{ |
| 45 | + ListenAddr: "0.0.0.0:2377", |
| 46 | + AdvertiseAddr: advertiseAddr, |
| 47 | + }) |
| 48 | + return err |
| 49 | +} |
| 50 | + |
| 51 | +func (s *DockerService) LeaveCluster(force bool) error { |
| 52 | + err := s.Cli.SwarmLeave(s.Ctx, force) |
| 53 | + return err |
| 54 | +} |
| 55 | + |
| 56 | +func (s *DockerService) GetClusterInfo() (swarm.ClusterInfo, error) { |
| 57 | + clusterInfo, err := s.Cli.SwarmInspect(s.Ctx) |
| 58 | + return clusterInfo.ClusterInfo, err |
| 59 | +} |
| 60 | + |
| 61 | +func (s *DockerService) GetClusterNodes() ([]swarm.Node, error) { |
| 62 | + nodes, err := s.Cli.NodeList(s.Ctx, types.NodeListOptions{}) |
| 63 | + return nodes, err |
| 64 | +} |
| 65 | + |
| 66 | +func (s *DockerService) GetClusterServices() ([]swarm.Service, error) { |
| 67 | + services, err := s.Cli.ServiceList(s.Ctx, types.ServiceListOptions{}) |
| 68 | + return services, err |
| 69 | +} |
| 70 | + |
| 71 | +func (s *DockerService) GetClusterTasks() ([]swarm.Task, error) { |
| 72 | + tasks, err := s.Cli.TaskList(s.Ctx, types.TaskListOptions{}) |
| 73 | + return tasks, err |
| 74 | +} |
| 75 | + |
| 76 | +func (s *DockerService) GetClusterSecrets() ([]swarm.Secret, error) { |
| 77 | + secrets, err := s.Cli.SecretList(s.Ctx, types.SecretListOptions{}) |
| 78 | + return secrets, err |
| 79 | +} |
| 80 | + |
| 81 | +func (s *DockerService) GetClusterConfigs() ([]swarm.Config, error) { |
| 82 | + configs, err := s.Cli.ConfigList(s.Ctx, types.ConfigListOptions{}) |
| 83 | + return configs, err |
| 84 | +} |
| 85 | + |
| 86 | +func (s *DockerService) GetClusterVolumes() ([]*volume.Volume, error) { |
| 87 | + volumes, err := s.Cli.VolumeList(s.Ctx, volume.ListOptions{}) |
| 88 | + return volumes.Volumes, err |
| 89 | +} |
| 90 | + |
| 91 | +func (s *DockerService) GetClusterNetworks() ([]network.Summary, error) { |
| 92 | + networks, err := s.Cli.NetworkList(s.Ctx, network.ListOptions{}) |
| 93 | + return networks, err |
| 94 | +} |
| 95 | + |
| 96 | +func (s *DockerService) UpdateNodeAvailability(nodeID string, availability swarm.NodeAvailability) error { |
| 97 | + node, _, err := s.Cli.NodeInspectWithRaw(s.Ctx, nodeID) |
| 98 | + if err != nil { |
| 99 | + return err |
| 100 | + } |
| 101 | + spec := node.Spec |
| 102 | + spec.Availability = availability |
| 103 | + return s.Cli.NodeUpdate(s.Ctx, nodeID, node.Version, spec) |
| 104 | +} |
| 105 | + |
| 106 | +func (s *DockerService) ListenEvents(opts events.ListOptions) (<-chan events.Message, <-chan error) { |
| 107 | + return s.Cli.Events(s.Ctx, opts) |
| 108 | +} |
| 109 | + |
| 110 | +func (s *DockerService) ScaleService(serviceID string, replicas uint64, rollback string) error { |
| 111 | + svc, _, err := s.Cli.ServiceInspectWithRaw(s.Ctx, serviceID, types.ServiceInspectOptions{}) |
| 112 | + if err != nil { |
| 113 | + return err |
| 114 | + } |
| 115 | + spec := svc.Spec |
| 116 | + spec.Mode.Replicated.Replicas = &replicas |
| 117 | + _, err = s.Cli.ServiceUpdate(s.Ctx, serviceID, svc.Version, spec, types.ServiceUpdateOptions{ |
| 118 | + Rollback: rollback, |
| 119 | + }) |
| 120 | + return err |
| 121 | +} |
| 122 | + |
| 123 | +func (s *DockerService) GetServiceHealth(service swarm.Service) (int, int, error) { |
| 124 | + tasks, err := s.Cli.TaskList(s.Ctx, types.TaskListOptions{ |
| 125 | + Filters: filters.NewArgs( |
| 126 | + filters.Arg("service", service.ID), |
| 127 | + ), |
| 128 | + }) |
| 129 | + if err != nil { |
| 130 | + return 0, 0, err |
| 131 | + } |
| 132 | + |
| 133 | + running := 0 |
| 134 | + for _, t := range tasks { |
| 135 | + if t.Status.State == swarm.TaskStateRunning { |
| 136 | + running++ |
| 137 | + } |
| 138 | + } |
| 139 | + desired := 0 |
| 140 | + if service.Spec.Mode.Replicated != nil && service.Spec.Mode.Replicated.Replicas != nil { |
| 141 | + desired = int(*service.Spec.Mode.Replicated.Replicas) |
| 142 | + } |
| 143 | + return running, desired, nil |
| 144 | +} |
| 145 | + |
| 146 | +func (s *DockerService) GetTaskHealth(task swarm.Task) swarm.TaskState { |
| 147 | + if task.Status.State != "" { |
| 148 | + return task.Status.State |
| 149 | + } |
| 150 | + return swarm.TaskState("") |
| 151 | +} |
| 152 | + |
| 153 | +func (s *DockerService) CreateService(service swarm.Service) error { |
| 154 | + _, err := s.Cli.ServiceCreate(s.Ctx, service.Spec, types.ServiceCreateOptions{}) |
| 155 | + if err != nil { |
| 156 | + return err |
| 157 | + } |
| 158 | + return nil |
| 159 | +} |
| 160 | + |
| 161 | +func (s *DockerService) UpdateService(serviceID string, serviceSpec swarm.ServiceSpec, rollback string) error { |
| 162 | + svc, _, err := s.Cli.ServiceInspectWithRaw(s.Ctx, serviceID, types.ServiceInspectOptions{}) |
| 163 | + if err != nil { |
| 164 | + return err |
| 165 | + } |
| 166 | + |
| 167 | + _, err = s.Cli.ServiceUpdate(s.Ctx, serviceID, svc.Version, serviceSpec, types.ServiceUpdateOptions{ |
| 168 | + Rollback: rollback, |
| 169 | + }) |
| 170 | + return err |
| 171 | +} |
| 172 | + |
| 173 | +func (s *DockerService) DeleteService(serviceID string) error { |
| 174 | + err := s.Cli.ServiceRemove(s.Ctx, serviceID) |
| 175 | + return err |
| 176 | +} |
| 177 | + |
| 178 | +func (s *DockerService) RollbackService(serviceID string) error { |
| 179 | + _, err := s.Cli.ServiceUpdate(s.Ctx, serviceID, swarm.Version{}, swarm.ServiceSpec{}, types.ServiceUpdateOptions{ |
| 180 | + Rollback: "previous", |
| 181 | + }) |
| 182 | + return err |
| 183 | +} |
| 184 | + |
| 185 | +func (s *DockerService) GetServiceByID(serviceID string) (swarm.Service, error) { |
| 186 | + service, _, err := s.Cli.ServiceInspectWithRaw(s.Ctx, serviceID, types.ServiceInspectOptions{}) |
| 187 | + return service, err |
| 188 | +} |
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