feat(services): volume mounts + admin volume inventory (C1)

services.volumes JSONB [{type: volume|bind, source, target, read_only}]
mapped into every replica's container config at deploy and reconcile
time, hashed into the runtime spec so mount changes trigger
reconciliation. Mounted via existing docker.HostConfig.Mounts.

- RuntimeSpec.Volumes + specHash + mount.Mount mapping in createReplica
- Create/update service accepts volumes; PUT replaces the whole list
- Replica-count reconcile now goes through the deploy queue — the last
  raw `go` reconcile left that could race a build
- GET /admin/volumes inventories node volumes with in_use flags;
  DELETE /admin/volumes/:name removes unused ones (409 on in-use)
- CLI: services update --volume/--bind/--clear-volumes, volumes
  list|delete; MCP: services_update + volumes_list/delete
- Settings UI: Volumes section with mount editor
- Migration normalizes the nullable baseline column to NOT NULL [].

Verified live: deploy applies mounts to the container, docker
auto-creates named volumes, in-use deletion is refused.

Generated with [Devin](https://devin.ai)

Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>
This commit is contained in:
Tomas DvorakandDevin committed 2026-10-08 16:38:46 +02:00
1 parent 747b714a02
commit 2f8f595d6e
21 files changed
+863 -93

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@@ -3,8 +3,12 @@ package api
import (
"containr/internal/database"
"containr/internal/deployment"
"containr/internal/deployqueue"
"context"
"encoding/json"
"fmt"
"net/http"
"strings"
"time"
"github.com/gin-gonic/gin"
@@ -27,53 +31,107 @@ type Service struct {
CPU string `json:"cpu" db:"cpu"`
Memory string `json:"memory" db:"memory"`
// Runtime spec
Replicas int `json:"replicas" db:"replicas"`
Port int `json:"port" db:"port"` // container port to expose
Domain string `json:"domain" db:"domain"` // public hostname via Traefik
HealthCheckPath string `json:"healthcheck_path" db:"healthcheck_path"` // probed on Port
RestartPolicy string `json:"restart_policy" db:"restart_policy"`
PublicURL string `json:"public_url,omitempty" db:"-"` // computed at read time
CreatedAt time.Time `json:"created_at" db:"created_at"`
UpdatedAt time.Time `json:"updated_at" db:"updated_at"`
Replicas int `json:"replicas" db:"replicas"`
Port int `json:"port" db:"port"` // container port to expose
Domain string `json:"domain" db:"domain"` // public hostname via Traefik
HealthCheckPath string `json:"healthcheck_path" db:"healthcheck_path"` // probed on Port
RestartPolicy string `json:"restart_policy" db:"restart_policy"`
PublicURL string `json:"public_url,omitempty" db:"-"` // computed at read time
Volumes []ServiceVolume `json:"volumes" db:"-"` // loaded lazily — stored as JSONB
CreatedAt time.Time `json:"created_at" db:"created_at"`
UpdatedAt time.Time `json:"updated_at" db:"updated_at"`
}
// ServiceVolume is a volume/bind mount applied to every replica.
type ServiceVolume struct {
Type string `json:"type"` // volume | bind (empty = volume)
Source string `json:"source"` // volume name or host path
Target string `json:"target"` // container path (absolute)
ReadOnly bool `json:"read_only"`
}
// loadServiceVolumes reads the JSONB column; absent/invalid data degrades
// to no mounts rather than failing the request.
func loadServiceVolumes(db *database.DB, serviceID uuid.UUID) []deployment.VolumeMount {
var raw []byte
if err := db.QueryRow(`SELECT volumes FROM services WHERE id = $1`, serviceID).Scan(&raw); err != nil {
return nil
}
var stored []ServiceVolume
if err := json.Unmarshal(raw, &stored); err != nil {
return nil
}
out := make([]deployment.VolumeMount, 0, len(stored))
for _, v := range stored {
out = append(out, deployment.VolumeMount{
Type: v.Type,
Source: v.Source,
Destination: v.Target,
ReadOnly: v.ReadOnly,
})
}
return out
}
// validateServiceVolumes enforces the mount contract — bad paths fail
// fast at write time instead of surfacing as docker create errors later.
func validateServiceVolumes(vols []ServiceVolume) error {
for i, v := range vols {
if v.Type == "" {
v.Type = "volume"
}
if v.Type != "volume" && v.Type != "bind" {
return fmt.Errorf("volumes[%d].type must be volume or bind", i)
}
if strings.TrimSpace(v.Source) == "" {
return fmt.Errorf("volumes[%d].source is required", i)
}
if !strings.HasPrefix(v.Target, "/") {
return fmt.Errorf("volumes[%d].target must be an absolute container path", i)
}
}
return nil
}
// CreateServiceRequest represents a request to create a service
type CreateServiceRequest struct {
ProjectID uuid.UUID `json:"project_id"`
Name string `json:"name" binding:"required,min=1,max=255"`
Type string `json:"type" binding:"required,oneof=web worker database cron"`
Image string `json:"image"`
Command string `json:"command"`
Environment string `json:"environment" binding:"required,oneof=production preview development"`
GitRepo string `json:"git_repo"`
GitBranch string `json:"git_branch"`
BuildPath string `json:"build_path"`
CPU string `json:"cpu"`
Memory string `json:"memory"`
Replicas int `json:"replicas"`
Port int `json:"port"`
Domain string `json:"domain"`
HealthCheckPath string `json:"healthcheck_path"`
RestartPolicy string `json:"restart_policy"`
ProjectID uuid.UUID `json:"project_id"`
Name string `json:"name" binding:"required,min=1,max=255"`
Type string `json:"type" binding:"required,oneof=web worker database cron"`
Image string `json:"image"`
Command string `json:"command"`
Environment string `json:"environment" binding:"required,oneof=production preview development"`
GitRepo string `json:"git_repo"`
GitBranch string `json:"git_branch"`
BuildPath string `json:"build_path"`
CPU string `json:"cpu"`
Memory string `json:"memory"`
Replicas int `json:"replicas"`
Port int `json:"port"`
Domain string `json:"domain"`
HealthCheckPath string `json:"healthcheck_path"`
RestartPolicy string `json:"restart_policy"`
Volumes []ServiceVolume `json:"volumes"`
}
// UpdateServiceRequest represents a request to update a service
type UpdateServiceRequest struct {
Name string `json:"name" binding:"omitempty,min=1,max=255"`
Type string `json:"type" binding:"omitempty,oneof=web worker database cron"`
Image string `json:"image"`
Command string `json:"command"`
Environment string `json:"environment" binding:"omitempty,oneof=production preview development"`
GitRepo string `json:"git_repo"`
GitBranch string `json:"git_branch"`
BuildPath string `json:"build_path"`
CPU string `json:"cpu"`
Memory string `json:"memory"`
Replicas *int `json:"replicas"`
Port *int `json:"port"`
Domain *string `json:"domain"`
HealthCheckPath *string `json:"healthcheck_path"`
RestartPolicy string `json:"restart_policy"`
Name string `json:"name" binding:"omitempty,min=1,max=255"`
Type string `json:"type" binding:"omitempty,oneof=web worker database cron"`
Image string `json:"image"`
Command string `json:"command"`
Environment string `json:"environment" binding:"omitempty,oneof=production preview development"`
GitRepo string `json:"git_repo"`
GitBranch string `json:"git_branch"`
BuildPath string `json:"build_path"`
CPU string `json:"cpu"`
Memory string `json:"memory"`
Replicas *int `json:"replicas"`
Port *int `json:"port"`
Domain *string `json:"domain"`
HealthCheckPath *string `json:"healthcheck_path"`
RestartPolicy string `json:"restart_policy"`
Volumes *[]ServiceVolume `json:"volumes"`
}
// handleGetServices retrieves all services for a project
@@ -262,6 +320,15 @@ func handleCreateService(c *gin.Context) {
if service.RestartPolicy == "" {
service.RestartPolicy = "unless-stopped"
}
if err := validateServiceVolumes(req.Volumes); err != nil {
c.JSON(http.StatusBadRequest, gin.H{"error": err.Error(), "code": "VALIDATION"})
return
}
service.Volumes = req.Volumes
volumesJSON, _ := json.Marshal(req.Volumes)
if len(req.Volumes) == 0 {
volumesJSON = []byte("[]")
}
environmentID, err := getProjectEnvironmentID(db.(*database.DB), service.ProjectID, service.Environment)
if err != nil {
@@ -277,14 +344,14 @@ func handleCreateService(c *gin.Context) {
(id, project_id, name, environment_id, service_type, source_type, source_url, image_name,
build_command, start_command, type, status, image, command, environment,
git_repo, git_branch, build_path, cpu, memory, replicas, port, domain,
healthcheck_path, restart_policy, created_at, updated_at)
VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14, $15, $16, $17, $18, $19, $20, $21, $22, $23, $24, $25, $26, $27)`,
healthcheck_path, restart_policy, volumes, created_at, updated_at)
VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13, $14, $15, $16, $17, $18, $19, $20, $21, $22, $23, $24, $25, $26, $27, $28)`,
service.ID, service.ProjectID, service.Name, environmentID, service.Type,
sourceType, firstNonEmpty(service.GitRepo, service.Image), service.Image,
"", service.Command, service.Type, service.Status, service.Image, service.Command,
service.Environment, service.GitRepo, service.GitBranch, service.BuildPath, service.CPU, service.Memory,
service.Replicas, service.Port, service.Domain, service.HealthCheckPath, service.RestartPolicy,
service.CreatedAt, service.UpdatedAt,
volumesJSON, service.CreatedAt, service.UpdatedAt,
)
if err != nil {
@@ -369,6 +436,11 @@ func handleGetService(c *gin.Context) {
}
liveServiceStatus(c, db.(*database.DB), &service)
for _, v := range loadServiceVolumes(db.(*database.DB), service.ID) {
service.Volumes = append(service.Volumes, ServiceVolume{
Type: v.Type, Source: v.Source, Target: v.Destination, ReadOnly: v.ReadOnly,
})
}
c.JSON(http.StatusOK, gin.H{"service": service})
}
@@ -483,6 +555,15 @@ func handleUpdateService(c *gin.Context) {
if req.RestartPolicy != "" {
existingService.RestartPolicy = req.RestartPolicy
}
var volumesJSON []byte
if req.Volumes != nil {
if err := validateServiceVolumes(*req.Volumes); err != nil {
c.JSON(http.StatusBadRequest, gin.H{"error": err.Error(), "code": "VALIDATION"})
return
}
existingService.Volumes = *req.Volumes
volumesJSON, _ = json.Marshal(*req.Volumes)
}
existingService.UpdatedAt = time.Now()
@@ -492,14 +573,14 @@ func handleUpdateService(c *gin.Context) {
SET name = $1, type = $2, image = $3, command = $4, environment = $5,
git_repo = $6, git_branch = $7, build_path = $8, cpu = $9, memory = $10,
replicas = $11, port = $12, domain = $13, healthcheck_path = $14,
restart_policy = $15, updated_at = $16
WHERE id = $17`,
restart_policy = $15, volumes = COALESCE($17, volumes), updated_at = $16
WHERE id = $18`,
existingService.Name, existingService.Type, existingService.Image, existingService.Command,
existingService.Environment, existingService.GitRepo, existingService.GitBranch,
existingService.BuildPath, existingService.CPU, existingService.Memory,
existingService.Replicas, existingService.Port, existingService.Domain,
existingService.HealthCheckPath, existingService.RestartPolicy,
existingService.UpdatedAt, existingService.ID,
existingService.UpdatedAt, volumesJSON, existingService.ID,
)
if err != nil {
@@ -509,21 +590,21 @@ func handleUpdateService(c *gin.Context) {
// A replica change applies immediately when the service has live
// containers; other spec fields take effect on the next deploy.
// Runs through the deploy queue so it can't overlap a build.
if req.Replicas != nil && existingService.Status == "running" {
if engineValue, exists := c.Get("deployment_engine"); exists && engineValue != nil {
engine := engineValue.(*deployment.DeploymentEngine)
serviceCopy := existingService
go func() {
spec, err := serviceRuntimeSpec(db.(*database.DB), serviceCopy)
dbCopy := db.(*database.DB)
getDeployQueue(c).Enqueue(serviceCopy.ID, deployqueue.Job{Run: func(jctx context.Context) {
spec, err := serviceRuntimeSpec(dbCopy, serviceCopy)
if err != nil {
return
}
ctx, cancel := context.WithTimeout(context.Background(), 2*time.Minute)
defer cancel()
if state, err := engine.ReconcileService(ctx, spec); err == nil && state != nil {
persistPublishedPort(db.(*database.DB), serviceCopy.ID, state.Ports)
if state, err := engine.ReconcileService(jctx, spec); err == nil && state != nil {
persistPublishedPort(dbCopy, serviceCopy.ID, state.Ports)
}
}()
}})
}
}