composer+worker: make dnf-json path externally configurable

The default value is the installation path.

cmd/osbuild-composer/composer.go

@@ -74,6 +74,7 @@ func NewComposer(config *ComposerConfigFile, stateDir, cacheDir string) (*Compos
 	logrus.Infof("Loaded %d distros", len(c.distros.List()))
 
 	c.solver = dnfjson.NewBaseSolver(path.Join(c.cacheDir, "rpmmd"))
+	c.solver.SetDNFJSONPath(c.config.DNFJson)
 
 	var jobs jobqueue.JobQueue
 	if config.Worker.PGDatabase != "" {

cmd/osbuild-composer/config.go

@@ -17,6 +17,7 @@ type ComposerConfigFile struct {
 	SyslogServer string          `toml:"syslog_server" env:"SYSLOG_SERVER"`
 	LogLevel     string          `toml:"log_level"`
 	LogFormat    string          `toml:"log_format"`
+	DNFJson      string          `toml:"dnf-json"`
 }
 
 type KojiAPIConfig struct {
@@ -108,6 +109,7 @@ func GetDefaultConfig() *ComposerConfigFile {
 		},
 		LogLevel:  "info",
 		LogFormat: "text",
+		DNFJson:   "/usr/libexec/osbuild-composer/dnf-json",
 	}
 }
 

cmd/osbuild-worker/jobimpl-depsolve.go

@@ -12,7 +12,7 @@ import (
 )
 
 type DepsolveJobImpl struct {
-	RPMMDCache string
+	Solver *dnfjson.BaseSolver
 }
 
 // depsolve each package set in the pacakgeSets map.  The repositories defined
@@ -20,7 +20,7 @@ type DepsolveJobImpl struct {
 // packageSetsRepos are only used for the package set with the same name
 // (matching map keys).
 func (impl *DepsolveJobImpl) depsolve(packageSetsChains map[string][]string, packageSets map[string]rpmmd.PackageSet, repos []rpmmd.RepoConfig, packageSetsRepos map[string][]rpmmd.RepoConfig, modulePlatformID, arch, releasever string) (map[string][]rpmmd.PackageSpec, error) {
-	solver := dnfjson.NewSolver(modulePlatformID, releasever, arch, impl.RPMMDCache)
+	solver := impl.Solver.NewWithConfig(modulePlatformID, releasever, arch)
 
 	depsolvedSets := make(map[string][]rpmmd.PackageSpec)
 	// first depsolve package sets that are part of a chain

cmd/osbuild-worker/main.go

@@ -22,6 +22,7 @@ import (
 	"github.com/sirupsen/logrus"
 
 	"github.com/osbuild/osbuild-composer/internal/common"
+	"github.com/osbuild/osbuild-composer/internal/dnfjson"
 	"github.com/osbuild/osbuild-composer/internal/upload/azure"
 	"github.com/osbuild/osbuild-composer/internal/upload/koji"
 	"github.com/osbuild/osbuild-composer/internal/worker"
@@ -223,6 +224,7 @@ func main() {
 		} `toml:"authentication"`
 		RelaxTimeoutFactor uint   `toml:"RelaxTimeoutFactor"`
 		BasePath           string `toml:"base_path"`
+		DNFJson            string `toml:"dnf-json"`
 	}
 	var unix bool
 	flag.BoolVar(&unix, "unix", false, "Interpret 'address' as a path to a unix domain socket instead of a network address")
@@ -396,11 +398,15 @@ func main() {
 
 	// depsolve jobs can be done during other jobs
 	depsolveCtx, depsolveCtxCancel := context.WithCancel(context.Background())
+	solver := dnfjson.NewBaseSolver(rpmmd_cache)
+	if config.DNFJson != "" {
+		solver.SetDNFJSONPath(config.DNFJson)
+	}
 	defer depsolveCtxCancel()
 	go func() {
 		jobImpls := map[string]JobImplementation{
 			"depsolve": &DepsolveJobImpl{
-				RPMMDCache: rpmmd_cache,
+				Solver: solver,
 			},
 		}
 		acceptedJobTypes := []string{}