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docker
bsc1001161-0002-cli-add-a-separate-domainname-f...
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File bsc1001161-0002-cli-add-a-separate-domainname-flag.patch of Package docker
From 975d8efceb479c3d0994814cc5d488ac33d0d2d6 Mon Sep 17 00:00:00 2001 From: Aleksa Sarai <asarai@suse.de> Date: Mon, 18 Jun 2018 21:58:23 +1000 Subject: [PATCH 2/2] cli: add a separate --domainname flag A while ago, Docker split the "Domainname" field out from the "Hostname" field for the container configuration. There was no real user-visible change associated with this (and under the hood "Domainname" was mostly left unused from the command-line point of view). We now add this flag in order to match other proposed changes to allow for setting the NIS domainname of a container. This also includes a fix for the --hostname parsing tests (they would not error out if only one of .Hostname and .Domainname were incorrectly set -- which is not correct). SUSE-Bugs: bsc#1001161 Signed-off-by: Aleksa Sarai <asarai@suse.de> --- components/cli/cli/command/container/opts.go | 3 ++ .../cli/cli/command/container/opts_test.go | 31 ++++++++++++++++--- components/cli/contrib/completion/bash/docker | 5 +-- components/cli/contrib/completion/zsh/_docker | 1 + .../cli/docs/reference/commandline/create.md | 1 + .../cli/docs/reference/commandline/run.md | 1 + .../reference/commandline/service_create.md | 2 +- components/cli/docs/reference/run.md | 6 ++-- components/cli/man/docker-run.1.md | 7 +++++ 9 files changed, 46 insertions(+), 11 deletions(-) diff --git a/components/cli/cli/command/container/opts.go b/components/cli/cli/command/container/opts.go index 97906b672252..7cd9ce998c8b 100644 --- a/components/cli/cli/command/container/opts.go +++ b/components/cli/cli/command/container/opts.go @@ -74,6 +74,7 @@ type containerOptions struct { containerIDFile string entrypoint string hostname string + domainname string memory opts.MemBytes memoryReservation opts.MemBytes memorySwap opts.MemSwapBytes @@ -169,6 +170,7 @@ func addFlags(flags *pflag.FlagSet) *containerOptions { flags.StringVar(&copts.entrypoint, "entrypoint", "", "Overwrite the default ENTRYPOINT of the image") flags.Var(&copts.groupAdd, "group-add", "Add additional groups to join") flags.StringVarP(&copts.hostname, "hostname", "h", "", "Container host name") + flags.StringVar(&copts.domainname, "domainname", "", "Container NIS domain name") flags.BoolVarP(&copts.stdin, "interactive", "i", false, "Keep STDIN open even if not attached") flags.VarP(&copts.labels, "label", "l", "Set meta data on a container") flags.Var(&copts.labelsFile, "label-file", "Read in a line delimited file of labels") @@ -546,6 +548,7 @@ func parse(flags *pflag.FlagSet, copts *containerOptions) (*containerConfig, err config := &container.Config{ Hostname: copts.hostname, + Domainname: copts.domainname, ExposedPorts: ports, User: copts.user, Tty: copts.tty, diff --git a/components/cli/cli/command/container/opts_test.go b/components/cli/cli/command/container/opts_test.go index 6d7c95a5ddb8..70bedc661751 100644 --- a/components/cli/cli/command/container/opts_test.go +++ b/components/cli/cli/command/container/opts_test.go @@ -265,14 +265,35 @@ func TestParseHostname(t *testing.T) { hostnameWithDomainTld := "--hostname=hostname.domainname.tld" for hostname, expectedHostname := range validHostnames { if config, _ := mustParse(t, fmt.Sprintf("--hostname=%s", hostname)); config.Hostname != expectedHostname { - t.Fatalf("Expected the config to have 'hostname' as hostname, got '%v'", config.Hostname) + t.Fatalf("Expected the config to have 'hostname' as %q, got %q", expectedHostname, config.Hostname) } } - if config, _ := mustParse(t, hostnameWithDomain); config.Hostname != "hostname.domainname" && config.Domainname != "" { - t.Fatalf("Expected the config to have 'hostname' as hostname.domainname, got '%v'", config.Hostname) + if config, _ := mustParse(t, hostnameWithDomain); config.Hostname != "hostname.domainname" || config.Domainname != "" { + t.Fatalf("Expected the config to have 'hostname' as hostname.domainname, got %q", config.Hostname) } - if config, _ := mustParse(t, hostnameWithDomainTld); config.Hostname != "hostname.domainname.tld" && config.Domainname != "" { - t.Fatalf("Expected the config to have 'hostname' as hostname.domainname.tld, got '%v'", config.Hostname) + if config, _ := mustParse(t, hostnameWithDomainTld); config.Hostname != "hostname.domainname.tld" || config.Domainname != "" { + t.Fatalf("Expected the config to have 'hostname' as hostname.domainname.tld, got %q", config.Hostname) + } +} + +func TestParseHostnameDomainname(t *testing.T) { + validDomainnames := map[string]string{ + "domainname": "domainname", + "domain-name": "domain-name", + "domainname123": "domainname123", + "123domainname": "123domainname", + "domainname-63-bytes-long-should-be-valid-and-without-any-errors": "domainname-63-bytes-long-should-be-valid-and-without-any-errors", + } + for domainname, expectedDomainname := range validDomainnames { + if config, _ := mustParse(t, "--domainname="+domainname); config.Domainname != expectedDomainname { + t.Fatalf("Expected the config to have 'domainname' as %q, got %q", expectedDomainname, config.Domainname) + } + } + if config, _ := mustParse(t, "--hostname=some.prefix --domainname=domainname"); config.Hostname != "some.prefix" || config.Domainname != "domainname" { + t.Fatalf("Expected the config to have 'hostname' as 'some.prefix' and 'domainname' as 'domainname', got %q and %q", config.Hostname, config.Domainname) + } + if config, _ := mustParse(t, "--hostname=another-prefix --domainname=domainname.tld"); config.Hostname != "another-prefix" || config.Domainname != "domainname.tld" { + t.Fatalf("Expected the config to have 'hostname' as 'another-prefix' and 'domainname' as 'domainname.tld', got %q and %q", config.Hostname, config.Domainname) } } diff --git a/components/cli/contrib/completion/bash/docker b/components/cli/contrib/completion/bash/docker index 44ac8f3e0ed9..c532f5142c3d 100644 --- a/components/cli/contrib/completion/bash/docker +++ b/components/cli/contrib/completion/bash/docker @@ -5,8 +5,8 @@ # - SC2016: Expressions don't expand in single quotes, use double quotes for that. # - SC2119: Use foo "$@" if function's $1 should mean script's $1. # - SC2155: Declare and assign separately to avoid masking return values. -# -# You can find more details for each warning at the following page: +# +# You can find more details for each warning at the following page: # https://github.com/koalaman/shellcheck/wiki/<SCXXXX> # # bash completion file for core docker commands @@ -1785,6 +1785,7 @@ _docker_container_run_and_create() { --dns --dns-option --dns-search + --domainname --entrypoint --env -e --env-file diff --git a/components/cli/contrib/completion/zsh/_docker b/components/cli/contrib/completion/zsh/_docker index 94f042204dfb..9a502db0886f 100644 --- a/components/cli/contrib/completion/zsh/_docker +++ b/components/cli/contrib/completion/zsh/_docker @@ -617,6 +617,7 @@ __docker_container_subcommand() { "($help)*--dns=[Custom DNS servers]:DNS server: " "($help)*--dns-option=[Custom DNS options]:DNS option: " "($help)*--dns-search=[Custom DNS search domains]:DNS domains: " + "($help)*--domainname=[Container NIS domain name]:domainname:_hosts" "($help)*"{-e=,--env=}"[Environment variables]:environment variable: " "($help)--entrypoint=[Overwrite the default entrypoint of the image]:entry point: " "($help)*--env-file=[Read environment variables from a file]:environment file:_files" diff --git a/components/cli/docs/reference/commandline/create.md b/components/cli/docs/reference/commandline/create.md index d585da40ae1e..c829dbb3e5b9 100644 --- a/components/cli/docs/reference/commandline/create.md +++ b/components/cli/docs/reference/commandline/create.md @@ -53,6 +53,7 @@ Options: --dns value Set custom DNS servers (default []) --dns-option value Set DNS options (default []) --dns-search value Set custom DNS search domains (default []) + --domainname string Container NIS domain name --entrypoint string Overwrite the default ENTRYPOINT of the image -e, --env value Set environment variables (default []) --env-file value Read in a file of environment variables (default []) diff --git a/components/cli/docs/reference/commandline/run.md b/components/cli/docs/reference/commandline/run.md index 08b9f18d68ac..f448e1acf89b 100644 --- a/components/cli/docs/reference/commandline/run.md +++ b/components/cli/docs/reference/commandline/run.md @@ -57,6 +57,7 @@ Options: --dns value Set custom DNS servers (default []) --dns-option value Set DNS options (default []) --dns-search value Set custom DNS search domains (default []) + --domainname string Container NIS domain name --entrypoint string Overwrite the default ENTRYPOINT of the image -e, --env value Set environment variables (default []) --env-file value Read in a file of environment variables (default []) diff --git a/components/cli/docs/reference/commandline/service_create.md b/components/cli/docs/reference/commandline/service_create.md index 8fdb5297a102..c55c77b52d77 100644 --- a/components/cli/docs/reference/commandline/service_create.md +++ b/components/cli/docs/reference/commandline/service_create.md @@ -755,7 +755,7 @@ The swarm extends my-network to each node running the service. Containers on the same network can access each other using [service discovery](https://docs.docker.com/engine/swarm/networking/#use-swarm-mode-service-discovery). -Long form syntax of `--network` allows to specify list of aliases and driver options: +Long form syntax of `--network` allows to specify list of aliases and driver options: `--network name=my-network,alias=web1,driver-opt=field1=value1` ### Publish service ports externally to the swarm (-p, --publish) diff --git a/components/cli/docs/reference/run.md b/components/cli/docs/reference/run.md index a59a30525554..695974fe533c 100644 --- a/components/cli/docs/reference/run.md +++ b/components/cli/docs/reference/run.md @@ -256,7 +256,7 @@ The UTS namespace is for setting the hostname and the domain that is visible to running processes in that namespace. By default, all containers, including those with `--network=host`, have their own UTS namespace. The `host` setting will result in the container using the same UTS namespace as the host. Note that -`--hostname` is invalid in `host` UTS mode. +`--hostname` and `--domainname` are invalid in `host` UTS mode. You may wish to share the UTS namespace with the host if you would like the hostname of the container to change as the hostname of the host changes. A @@ -396,8 +396,8 @@ network stack and all interfaces from the host will be available to the container. The container's hostname will match the hostname on the host system. Note that `--mac-address` is invalid in `host` netmode. Even in `host` network mode a container has its own UTS namespace by default. As such -`--hostname` is allowed in `host` network mode and will only change the -hostname inside the container. +`--hostname` and `--domainname` are allowed in `host` network mode and will +only change the hostname and domain name inside the container. Similar to `--hostname`, the `--add-host`, `--dns`, `--dns-search`, and `--dns-option` options can be used in `host` network mode. These options update `/etc/hosts` or `/etc/resolv.conf` inside the container. No change are made to diff --git a/components/cli/man/docker-run.1.md b/components/cli/man/docker-run.1.md index e03377001d4e..4a1464a74200 100644 --- a/components/cli/man/docker-run.1.md +++ b/components/cli/man/docker-run.1.md @@ -35,6 +35,7 @@ docker-run - Run a command in a new container [**--dns**[=*[]*]] [**--dns-option**[=*[]*]] [**--dns-search**[=*[]*]] +[**--domainname**[=*DOMAINNAME*]] [**-e**|**--env**[=*[]*]] [**--entrypoint**[=*ENTRYPOINT*]] [**--env-file**[=*[]*]] @@ -285,6 +286,12 @@ configuration passed to the container. Typically this is necessary when the host DNS configuration is invalid for the container (e.g., 127.0.0.1). When this is the case the **--dns** flags is necessary for every run. +**--domainname**="" + Container NIS domain name + + Sets the container's NIS domain name (see also **setdomainname(2)**) that is + available inside the container. + **-e**, **--env**=[] Set environment variables -- 2.19.2
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