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Only change network fields if they were actually changed by the user

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Fixes: https://github.com/containers/podman/issues/13065

Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
This commit is contained in:
Daniel J Walsh 2022-01-31 09:58:15 -05:00
parent dc0dc6a557
commit 4ddc4e79d7
No known key found for this signature in database
GPG key ID: A2DF901DABE2C028
2 changed files with 96 additions and 63 deletions
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12
cmd/podman/common/netflags.go
View file

@ -103,6 +103,7 @@ func NetFlagsToNetOptions(opts *entities.NetOptions, flags pflag.FlagSet) (*enti
opts = &entities.NetOptions{}
}
if flags.Changed("add-hosts") {
opts.AddHosts, err = flags.GetStringSlice("add-host")
if err != nil {
return nil, err
@ -113,7 +114,9 @@ func NetFlagsToNetOptions(opts *entities.NetOptions, flags pflag.FlagSet) (*enti
return nil, err
}
}
}
if flags.Changed("dns") {
servers, err := flags.GetStringSlice("dns")
if err != nil {
return nil, err
@ -132,13 +135,17 @@ func NetFlagsToNetOptions(opts *entities.NetOptions, flags pflag.FlagSet) (*enti
}
opts.DNSServers = append(opts.DNSServers, dns)
}
}
if flags.Changed("dns-opt") {
options, err := flags.GetStringSlice("dns-opt")
if err != nil {
return nil, err
}
opts.DNSOptions = options
}
if flags.Changed("dns-search") {
dnsSearches, err := flags.GetStringSlice("dns-search")
if err != nil {
return nil, err
@ -156,7 +163,9 @@ func NetFlagsToNetOptions(opts *entities.NetOptions, flags pflag.FlagSet) (*enti
}
}
opts.DNSSearch = dnsSearches
}
if flags.Changed("publish") {
inputPorts, err := flags.GetStringSlice("publish")
if err != nil {
return nil, err
@ -167,11 +176,14 @@ func NetFlagsToNetOptions(opts *entities.NetOptions, flags pflag.FlagSet) (*enti
return nil, err
}
}
}
if flags.Changed("no-host") {
opts.NoHosts, err = flags.GetBool("no-hosts")
if err != nil {
return nil, err
}
}
// parse the network only when network was changed
// otherwise we send default to server so that the server

21
test/system/500-networking.bats
View file

@ -589,4 +589,25 @@ load helpers
run_podman network rm -t 0 -f $netname
}
@test "podman run CONTAINERS_CONF dns options" {
skip_if_remote "CONTAINERS_CONF redirect does not work on remote"
# Test on the CLI and via containers.conf
containersconf=$PODMAN_TMPDIR/containers.conf
searchIP="100.100.100.100"
cat >$containersconf <<EOF
[containers]
dns_searches = [ "example.com"]
dns_servers = [
"1.1.1.1",
"$searchIP",
"1.0.0.1",
"8.8.8.8",
]
EOF
CONTAINERS_CONF=$containersconf run_podman run --rm $IMAGE grep "example.com" /etc/resolv.conf
CONTAINERS_CONF=$containersconf run_podman run --rm $IMAGE grep $searchIP /etc/resolv.conf
is "$output" "nameserver $searchIP" "Should only be one $searchIP not multiple"
}
# vim: filetype=sh