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package config
import (
"os"
"path/filepath"
"strconv"
"sync"
. "github.com/onsi/ginkgo/v2"
"github.com/onsi/gomega"
)
var _ = Describe("Connections conf", func() {
var (
connectionsConfFile string
containersConfFile string
)
BeforeEach(func() {
t := GinkgoT()
dir := t.TempDir()
connectionsConfFile = filepath.Join(dir, "connections.json")
t.Setenv("PODMAN_CONNECTIONS_CONF", connectionsConfFile)
containersConfFile = filepath.Join(dir, "containers.conf")
t.Setenv(containersConfEnv, containersConfFile)
})
It("read non existent file", func() {
path, err := connectionsConfigFile()
gomega.Expect(err).ToNot(gomega.HaveOccurred())
gomega.Expect(path).To(gomega.Equal(connectionsConfFile))
conf, err := readConnectionConf(path)
gomega.Expect(err).ToNot(gomega.HaveOccurred())
gomega.Expect(conf).To(gomega.Equal(&ConnectionsFile{}))
})
It("read empty file", func() {
err := os.WriteFile(connectionsConfFile, []byte("{}"), os.ModePerm)
gomega.Expect(err).ToNot(gomega.HaveOccurred())
path, err := connectionsConfigFile()
gomega.Expect(err).ToNot(gomega.HaveOccurred())
gomega.Expect(path).To(gomega.Equal(connectionsConfFile))
conf, err := readConnectionConf(path)
gomega.Expect(err).ToNot(gomega.HaveOccurred())
gomega.Expect(conf).To(gomega.Equal(&ConnectionsFile{}))
})
It("write and read file", func() {
orgConf := &ConnectionsFile{Connection: ConnectionConfig{
Default: "test",
Connections: map[string]Destination{
"test": {URI: "ssh://podman.io"},
},
}, Farm: FarmConfig{
Default: "farm1",
List: map[string][]string{
"farm1": {"test"},
},
}}
err := writeConnectionConf(connectionsConfFile, orgConf)
gomega.Expect(err).ToNot(gomega.HaveOccurred())
path, err := connectionsConfigFile()
gomega.Expect(err).ToNot(gomega.HaveOccurred())
gomega.Expect(path).To(gomega.Equal(connectionsConfFile))
conf, err := readConnectionConf(path)
gomega.Expect(err).ToNot(gomega.HaveOccurred())
gomega.Expect(conf).To(gomega.Equal(orgConf))
})
It("parallel EditConnectionConfig", func() {
// race test for EditConnectionConfig
// Basic idea spawn a bunch of goroutines and call EditConnectionConfig at the same time.
// We read a int from one field and then +1 one it each time so at the end we must have
// the number in the filed for how many times we called EditConnectionConfig. If it is
// less than it is racy.
count := 50
wg := sync.WaitGroup{}
wg.Add(count)
for i := 0; i < count; i++ {
go func() {
defer wg.Done()
err := EditConnectionConfig(func(cfg *ConnectionsFile) error {
if cfg.Connection.Default == "" {
cfg.Connection.Default = "1"
return nil
}
// basic idea just add 1
i, err := strconv.Atoi(cfg.Connection.Default)
if err != nil {
return err
}
i++
cfg.Connection.Default = strconv.Itoa(i)
return nil
})
gomega.Expect(err).ToNot(gomega.HaveOccurred())
}()
}
wg.Wait()
path, err := connectionsConfigFile()
gomega.Expect(err).ToNot(gomega.HaveOccurred())
conf, err := readConnectionConf(path)
gomega.Expect(err).ToNot(gomega.HaveOccurred())
gomega.Expect(conf.Connection.Default).To(gomega.Equal("50"))
})
Context("GetConnection/Farm", func() {
const defConnectionsConf = `{"Connection":{"Default":"test","Connections":{"test":{"URI":"ssh://podman.io"},"QA":{"URI":"ssh://test","Identity":".ssh/id","IsMachine":true}}},"farm":{"Default":"farm1","List":{"farm1":["test"]}}}`
const defContainersConf = `
[engine]
active_service = "containers"
[engine.service_destinations]
[engine.service_destinations.containers]
uri = "unix:///tmp/test.sock"
is_machine = true
[farms]
default = "farm2"
[farms.list]
farm2 = ["containers"]
`
BeforeEach(func() {
err := os.WriteFile(connectionsConfFile, []byte(defConnectionsConf), os.ModePerm)
gomega.Expect(err).ToNot(gomega.HaveOccurred())
err = os.WriteFile(containersConfFile, []byte(defContainersConf), os.ModePerm)
gomega.Expect(err).ToNot(gomega.HaveOccurred())
})
It("GetConnection()", func() {
conf, err := New(nil)
gomega.Expect(err).ToNot(gomega.HaveOccurred())
con, err := conf.GetConnection("", true)
gomega.Expect(err).ToNot(gomega.HaveOccurred())
gomega.Expect(con).To(gomega.Equal(&Connection{
Name: "test",
Default: true,
ReadWrite: true,
Destination: Destination{URI: "ssh://podman.io"},
}))
con, err = conf.GetConnection("test", false)
gomega.Expect(err).ToNot(gomega.HaveOccurred())
gomega.Expect(con).To(gomega.Equal(&Connection{
Name: "test",
Default: true,
ReadWrite: true,
Destination: Destination{URI: "ssh://podman.io"},
}))
con, err = conf.GetConnection("QA", false)
gomega.Expect(err).ToNot(gomega.HaveOccurred())
gomega.Expect(con).To(gomega.Equal(&Connection{
Name: "QA",
Default: false,
ReadWrite: true,
Destination: Destination{URI: "ssh://test", Identity: ".ssh/id", IsMachine: true},
}))
con, err = conf.GetConnection("containers", false)
gomega.Expect(err).ToNot(gomega.HaveOccurred())
gomega.Expect(con).To(gomega.Equal(&Connection{
Name: "containers",
Default: false,
ReadWrite: false,
Destination: Destination{URI: "unix:///tmp/test.sock", IsMachine: true},
}))
})
It("GetAllConnections()", func() {
conf, err := New(nil)
gomega.Expect(err).ToNot(gomega.HaveOccurred())
cons, err := conf.GetAllConnections()
gomega.Expect(err).ToNot(gomega.HaveOccurred())
gomega.Expect(cons).To(gomega.ContainElements(
Connection{
Name: "test",
Default: true,
ReadWrite: true,
Destination: Destination{URI: "ssh://podman.io"},
},
Connection{
Name: "QA",
Default: false,
ReadWrite: true,
Destination: Destination{URI: "ssh://test", Identity: ".ssh/id", IsMachine: true},
},
Connection{
Name: "containers",
Default: false,
ReadWrite: false,
Destination: Destination{URI: "unix:///tmp/test.sock", IsMachine: true},
},
))
})
It("GetFarmConnections()", func() {
conf, err := New(nil)
gomega.Expect(err).ToNot(gomega.HaveOccurred())
name, cons, err := conf.GetDefaultFarmConnections()
gomega.Expect(err).ToNot(gomega.HaveOccurred())
gomega.Expect(name).To(gomega.Equal("farm1"))
gomega.Expect(cons).To(gomega.ContainElements(
Connection{
Name: "test",
Default: false,
ReadWrite: false,
Destination: Destination{URI: "ssh://podman.io"},
},
))
cons, err = conf.GetFarmConnections("farm1")
gomega.Expect(err).ToNot(gomega.HaveOccurred())
gomega.Expect(cons).To(gomega.ContainElements(
Connection{
Name: "test",
Default: false,
ReadWrite: false,
Destination: Destination{URI: "ssh://podman.io"},
},
))
cons, err = conf.GetFarmConnections("farm2")
gomega.Expect(err).ToNot(gomega.HaveOccurred())
gomega.Expect(cons).To(gomega.ContainElements(
Connection{
Name: "containers",
Default: false,
ReadWrite: false,
Destination: Destination{URI: "unix:///tmp/test.sock", IsMachine: true},
},
))
})
It("GetAllFarms()", func() {
conf, err := New(nil)
gomega.Expect(err).ToNot(gomega.HaveOccurred())
farms, err := conf.GetAllFarms()
gomega.Expect(err).ToNot(gomega.HaveOccurred())
gomega.Expect(farms).To(gomega.ContainElements(
Farm{
Name: "farm1",
Connections: []string{"test"},
Default: true,
ReadWrite: true,
},
Farm{
Name: "farm2",
Connections: []string{"containers"},
Default: false,
ReadWrite: false,
},
))
})
})
})
|
