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-rw-r--r--cmd/podman/shared/create.go71
-rw-r--r--cmd/podman/shared/parse/parse.go19
-rw-r--r--pkg/adapter/containers.go17
-rw-r--r--pkg/adapter/containers_remote.go15
-rw-r--r--pkg/adapter/pods.go12
-rw-r--r--pkg/env/env.go126
-rw-r--r--pkg/inspect/inspect.go2
-rw-r--r--pkg/spec/spec.go5
8 files changed, 201 insertions, 66 deletions
diff --git a/cmd/podman/shared/create.go b/cmd/podman/shared/create.go
index 0814eeba3..0ce578bef 100644
--- a/cmd/podman/shared/create.go
+++ b/cmd/podman/shared/create.go
@@ -18,6 +18,7 @@ import (
"github.com/containers/libpod/libpod"
"github.com/containers/libpod/libpod/image"
ann "github.com/containers/libpod/pkg/annotations"
+ envLib "github.com/containers/libpod/pkg/env"
"github.com/containers/libpod/pkg/errorhandling"
"github.com/containers/libpod/pkg/inspect"
ns "github.com/containers/libpod/pkg/namespaces"
@@ -473,19 +474,49 @@ func ParseCreateOpts(ctx context.Context, c *GenericCLIResults, runtime *libpod.
}
// ENVIRONMENT VARIABLES
- env := EnvVariablesFromData(data)
+ //
+ // Precedence order (higher index wins):
+ // 1) env-host, 2) image data, 3) env-file, 4) env
+ var env map[string]string
+
+ // Start with env-host
if c.Bool("env-host") {
- for _, e := range os.Environ() {
- pair := strings.SplitN(e, "=", 2)
- if _, ok := env[pair[0]]; !ok {
- if len(pair) > 1 {
- env[pair[0]] = pair[1]
- }
+ osEnv, err := envLib.ParseSlice(os.Environ())
+ if err != nil {
+ return nil, errors.Wrap(err, "error parsing host environment variables")
+ }
+ env = osEnv
+ }
+
+ // Image data overrides any previous variables
+ if data != nil {
+ configEnv, err := envLib.ParseSlice(data.Config.Env)
+ if err != nil {
+ return nil, errors.Wrap(err, "error pasing image environment variables")
+ }
+ env = envLib.Join(env, configEnv)
+ }
+
+ // env-file overrides any previous variables
+ if c.IsSet("env-file") {
+ for _, f := range c.StringSlice("env-file") {
+ fileEnv, err := envLib.ParseFile(f)
+ if err != nil {
+ return nil, err
}
+ // File env is overridden by env.
+ env = envLib.Join(env, fileEnv)
}
}
- if err := parse.ReadKVStrings(env, c.StringSlice("env-file"), c.StringArray("env")); err != nil {
- return nil, errors.Wrapf(err, "unable to process environment variables")
+
+ // env overrides any previous variables
+ cmdlineEnv := c.StringSlice("env")
+ if len(cmdlineEnv) > 0 {
+ parsedEnv, err := envLib.ParseSlice(cmdlineEnv)
+ if err != nil {
+ return nil, err
+ }
+ env = envLib.Join(env, parsedEnv)
}
// LABEL VARIABLES
@@ -822,28 +853,6 @@ func CreateContainerFromCreateConfig(r *libpod.Runtime, createConfig *cc.CreateC
return ctr, nil
}
-var defaultEnvVariables = map[string]string{
- "PATH": "/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
- "TERM": "xterm",
-}
-
-// EnvVariablesFromData gets sets the default environment variables
-// for containers, and reads the variables from the image data, if present.
-func EnvVariablesFromData(data *inspect.ImageData) map[string]string {
- env := defaultEnvVariables
- if data != nil {
- for _, e := range data.Config.Env {
- split := strings.SplitN(e, "=", 2)
- if len(split) > 1 {
- env[split[0]] = split[1]
- } else {
- env[split[0]] = ""
- }
- }
- }
- return env
-}
-
func makeHealthCheckFromCli(c *GenericCLIResults) (*manifest.Schema2HealthConfig, error) {
inCommand := c.String("healthcheck-command")
inInterval := c.String("healthcheck-interval")
diff --git a/cmd/podman/shared/parse/parse.go b/cmd/podman/shared/parse/parse.go
index 79449029d..03cda268c 100644
--- a/cmd/podman/shared/parse/parse.go
+++ b/cmd/podman/shared/parse/parse.go
@@ -90,6 +90,8 @@ func GetAllLabels(labelFile, inputLabels []string) (map[string]string, error) {
// all environment variables, even those sourced from files, but
// that would require a substantial rework.
if err := parseEnvFile(labels, file); err != nil {
+ // FIXME: parseEnvFile is using parseEnv, so we need to add extra
+ // logic for labels.
return nil, err
}
}
@@ -107,23 +109,6 @@ func GetAllLabels(labelFile, inputLabels []string) (map[string]string, error) {
return labels, nil
}
-// reads a file of line terminated key=value pairs, and overrides any keys
-// present in the file with additional pairs specified in the override parameter
-// for env-file and labels-file flags
-func ReadKVStrings(env map[string]string, files []string, override []string) error {
- for _, ef := range files {
- if err := parseEnvFile(env, ef); err != nil {
- return err
- }
- }
- for _, line := range override {
- if err := parseEnv(env, line); err != nil {
- return err
- }
- }
- return nil
-}
-
func parseEnv(env map[string]string, line string) error {
data := strings.SplitN(line, "=", 2)
diff --git a/pkg/adapter/containers.go b/pkg/adapter/containers.go
index 08e19edb8..a5e668b04 100644
--- a/pkg/adapter/containers.go
+++ b/pkg/adapter/containers.go
@@ -19,13 +19,13 @@ import (
"github.com/containers/image/v5/manifest"
"github.com/containers/libpod/cmd/podman/cliconfig"
"github.com/containers/libpod/cmd/podman/shared"
- "github.com/containers/libpod/cmd/podman/shared/parse"
"github.com/containers/libpod/libpod"
"github.com/containers/libpod/libpod/define"
"github.com/containers/libpod/libpod/events"
"github.com/containers/libpod/libpod/image"
"github.com/containers/libpod/libpod/logs"
"github.com/containers/libpod/pkg/adapter/shortcuts"
+ envLib "github.com/containers/libpod/pkg/env"
"github.com/containers/libpod/pkg/systemd/generate"
"github.com/containers/storage"
"github.com/pkg/errors"
@@ -987,9 +987,20 @@ func (r *LocalRuntime) ExecContainer(ctx context.Context, cli *cliconfig.ExecVal
// Validate given environment variables
env := map[string]string{}
- if err := parse.ReadKVStrings(env, cli.EnvFile, cli.Env); err != nil {
- return ec, errors.Wrapf(err, "unable to process environment variables")
+ if len(cli.EnvFile) > 0 {
+ for _, f := range cli.EnvFile {
+ fileEnv, err := envLib.ParseFile(f)
+ if err != nil {
+ return ec, err
+ }
+ env = envLib.Join(env, fileEnv)
+ }
+ }
+ cliEnv, err := envLib.ParseSlice(cli.Env)
+ if err != nil {
+ return ec, errors.Wrap(err, "error parsing environment variables")
}
+ env = envLib.Join(env, cliEnv)
streams := new(libpod.AttachStreams)
streams.OutputStream = os.Stdout
diff --git a/pkg/adapter/containers_remote.go b/pkg/adapter/containers_remote.go
index 60ee3cb2d..32a84b60d 100644
--- a/pkg/adapter/containers_remote.go
+++ b/pkg/adapter/containers_remote.go
@@ -15,11 +15,11 @@ import (
"github.com/containers/libpod/cmd/podman/cliconfig"
"github.com/containers/libpod/cmd/podman/shared"
- "github.com/containers/libpod/cmd/podman/shared/parse"
iopodman "github.com/containers/libpod/cmd/podman/varlink"
"github.com/containers/libpod/libpod"
"github.com/containers/libpod/libpod/define"
"github.com/containers/libpod/libpod/logs"
+ envLib "github.com/containers/libpod/pkg/env"
"github.com/containers/libpod/pkg/varlinkapi/virtwriter"
"github.com/cri-o/ocicni/pkg/ocicni"
"github.com/docker/docker/pkg/term"
@@ -1025,16 +1025,11 @@ func (r *LocalRuntime) ExecContainer(ctx context.Context, cli *cliconfig.ExecVal
)
// default invalid command exit code
// Validate given environment variables
- env := map[string]string{}
- if err := parse.ReadKVStrings(env, []string{}, cli.Env); err != nil {
- return -1, errors.Wrapf(err, "Exec unable to process environment variables")
- }
-
- // Build env slice of key=value strings for Exec
- envs := []string{}
- for k, v := range env {
- envs = append(envs, fmt.Sprintf("%s=%s", k, v))
+ cliEnv, err := envLib.ParseSlice(cli.Env)
+ if err != nil {
+ return 0, errors.Wrap(err, "error parsing environment variables")
}
+ envs := envLib.Slice(cliEnv)
resize := make(chan remotecommand.TerminalSize, 5)
haveTerminal := terminal.IsTerminal(int(os.Stdin.Fd()))
diff --git a/pkg/adapter/pods.go b/pkg/adapter/pods.go
index 0d9fa7210..dc856cc8d 100644
--- a/pkg/adapter/pods.go
+++ b/pkg/adapter/pods.go
@@ -22,6 +22,7 @@ import (
"github.com/containers/libpod/libpod/image"
"github.com/containers/libpod/pkg/adapter/shortcuts"
ann "github.com/containers/libpod/pkg/annotations"
+ envLib "github.com/containers/libpod/pkg/env"
ns "github.com/containers/libpod/pkg/namespaces"
createconfig "github.com/containers/libpod/pkg/spec"
"github.com/containers/libpod/pkg/util"
@@ -916,9 +917,6 @@ func kubeContainerToCreateConfig(ctx context.Context, containerYAML v1.Container
containerConfig.User = userConfig
containerConfig.Security = securityConfig
- // Set default environment variables and incorporate data from image, if necessary
- envs := shared.EnvVariablesFromData(imageData)
-
annotations := make(map[string]string)
if infraID != "" {
annotations[ann.SandboxID] = infraID
@@ -927,6 +925,14 @@ func kubeContainerToCreateConfig(ctx context.Context, containerYAML v1.Container
containerConfig.Annotations = annotations
// Environment Variables
+ envs := map[string]string{}
+ if imageData != nil {
+ imageEnv, err := envLib.ParseSlice(imageData.Config.Env)
+ if err != nil {
+ return nil, errors.Wrap(err, "error parsing image environment variables")
+ }
+ envs = imageEnv
+ }
for _, e := range containerYAML.Env {
envs[e.Name] = e.Value
}
diff --git a/pkg/env/env.go b/pkg/env/env.go
new file mode 100644
index 000000000..31ffab03c
--- /dev/null
+++ b/pkg/env/env.go
@@ -0,0 +1,126 @@
+// Package for processing environment variables.
+package env
+
+// TODO: we need to add tests for this package.
+
+import (
+ "bufio"
+ "fmt"
+ "os"
+ "strings"
+
+ "github.com/pkg/errors"
+)
+
+// DefaultEnvVariables set $PATH, $TERM and $container.
+var DefaultEnvVariables = map[string]string{
+ "PATH": "/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
+ "TERM": "xterm",
+ "container": "podman",
+}
+
+const whiteSpaces = " \t"
+
+// ParseSlice parses the specified slice and transforms it into an environment
+// map.
+func ParseSlice(s []string) (map[string]string, error) {
+ env := make(map[string]string, len(s))
+ for _, e := range s {
+ if err := parseEnv(env, e); err != nil {
+ return nil, err
+ }
+ }
+ return env, nil
+}
+
+// Slice transforms the specified map of environment variables into a
+// slice. If a value is non-empty, the key and value are joined with '='.
+func Slice(m map[string]string) []string {
+ env := make([]string, len(m))
+ for k, v := range m {
+ var s string
+ if len(v) > 0 {
+ s = fmt.Sprintf("%s=%s", k, v)
+ } else {
+ s = k
+ }
+ env = append(env, s)
+ }
+ return env
+}
+
+// Join joins the two environment maps with override overriding base.
+func Join(base map[string]string, override map[string]string) map[string]string {
+ if len(base) == 0 {
+ return override
+ }
+ for k, v := range override {
+ base[k] = v
+ }
+ return base
+}
+
+// ParseFile parses the specified path for environment variables and returns them
+// as a map.
+func ParseFile(path string) (env map[string]string, err error) {
+ defer func() {
+ if err != nil {
+ err = errors.Wrapf(err, "error parsing env file %q", path)
+ }
+ }()
+
+ fh, err := os.Open(path)
+ if err != nil {
+ return nil, err
+ }
+ defer fh.Close()
+
+ scanner := bufio.NewScanner(fh)
+ for scanner.Scan() {
+ // trim the line from all leading whitespace first
+ line := strings.TrimLeft(scanner.Text(), whiteSpaces)
+ // line is not empty, and not starting with '#'
+ if len(line) > 0 && !strings.HasPrefix(line, "#") {
+ if err := parseEnv(env, line); err != nil {
+ return nil, err
+ }
+ }
+ }
+ return env, scanner.Err()
+}
+
+func parseEnv(env map[string]string, line string) error {
+ data := strings.SplitN(line, "=", 2)
+
+ // catch invalid variables such as "=" or "=A"
+ if data[0] == "" {
+ return errors.Errorf("invalid environment variable: %q", line)
+ }
+
+ // trim the front of a variable, but nothing else
+ name := strings.TrimLeft(data[0], whiteSpaces)
+ if strings.ContainsAny(name, whiteSpaces) {
+ return errors.Errorf("name %q has white spaces, poorly formatted name", name)
+ }
+
+ if len(data) > 1 {
+ env[name] = data[1]
+ } else {
+ if strings.HasSuffix(name, "*") {
+ name = strings.TrimSuffix(name, "*")
+ for _, e := range os.Environ() {
+ part := strings.SplitN(e, "=", 2)
+ if len(part) < 2 {
+ continue
+ }
+ if strings.HasPrefix(part[0], name) {
+ env[part[0]] = part[1]
+ }
+ }
+ } else if val, ok := os.LookupEnv(name); ok {
+ // if only a pass-through variable is given, clean it up.
+ env[name] = val
+ }
+ }
+ return nil
+}
diff --git a/pkg/inspect/inspect.go b/pkg/inspect/inspect.go
index 569f208d9..b04ce71a5 100644
--- a/pkg/inspect/inspect.go
+++ b/pkg/inspect/inspect.go
@@ -6,7 +6,7 @@ import (
"github.com/containers/image/v5/manifest"
"github.com/containers/libpod/libpod/driver"
"github.com/opencontainers/go-digest"
- "github.com/opencontainers/image-spec/specs-go/v1"
+ v1 "github.com/opencontainers/image-spec/specs-go/v1"
)
// ImageData holds the inspect information of an image
diff --git a/pkg/spec/spec.go b/pkg/spec/spec.go
index a4ae22efd..77f8bc657 100644
--- a/pkg/spec/spec.go
+++ b/pkg/spec/spec.go
@@ -7,6 +7,7 @@ import (
libpodconfig "github.com/containers/libpod/libpod/config"
"github.com/containers/libpod/libpod/define"
"github.com/containers/libpod/pkg/cgroups"
+ "github.com/containers/libpod/pkg/env"
"github.com/containers/libpod/pkg/rootless"
"github.com/containers/libpod/pkg/sysinfo"
"github.com/docker/go-units"
@@ -150,7 +151,6 @@ func (config *CreateConfig) createConfigToOCISpec(runtime *libpod.Runtime, userM
for key, val := range config.Annotations {
g.AddAnnotation(key, val)
}
- g.AddProcessEnv("container", "podman")
addedResources := false
@@ -292,6 +292,9 @@ func (config *CreateConfig) createConfigToOCISpec(runtime *libpod.Runtime, userM
}
}
+ // Make sure to always set the default variables unless overridden in the
+ // config.
+ config.Env = env.Join(env.DefaultEnvVariables, config.Env)
for name, val := range config.Env {
g.AddProcessEnv(name, val)
}
generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2024-12-29 08:43:54 +0000