1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
|
#!/usr/bin/env bats
load helpers
# This is a long ugly way to clean up pods and remove the pause image
function teardown() {
run_podman pod rm -f -a
run_podman rm -f -a
run_podman image list --format '{{.ID}} {{.Repository}}'
while read id name; do
if [[ "$name" =~ /pause ]]; then
run_podman rmi $id
fi
done <<<"$output"
basic_teardown
}
@test "podman pod top - containers in different PID namespaces" {
skip_if_remote "podman-pod does not work with podman-remote"
# With infra=false, we don't get a /pause container (we also
# don't pull k8s.gcr.io/pause )
no_infra='--infra=false'
run_podman pod create $no_infra
podid="$output"
# Start two containers...
run_podman run -d --pod $podid $IMAGE top -d 2
cid1="$output"
run_podman run -d --pod $podid $IMAGE top -d 2
cid2="$output"
# ...and wait for them to actually start.
wait_for_output "PID \+PPID \+USER " $cid1
wait_for_output "PID \+PPID \+USER " $cid2
# Both containers have emitted at least one top-like line.
# Now run 'pod top', and expect two 'top -d 2' processes running.
run_podman pod top $podid
is "$output" ".*root.*top -d 2.*root.*top -d 2" "two 'top' containers"
# By default (podman pod create w/ default --infra) there should be
# a /pause container.
if [ -z "$no_infra" ]; then
is "$output" ".*0 \+1 \+0 \+[0-9. ?s]\+/pause" "there is a /pause container"
fi
# Clean up
run_podman pod rm -f $podid
}
@test "podman pod - communicating between pods" {
skip_if_remote "podman-pod does not work with podman-remote"
podname=pod$(random_string)
run_podman pod create --infra=true --name=$podname
# Randomly-assigned port in the 5xxx range
for port in $(shuf -i 5000-5999);do
if ! { exec 3<> /dev/tcp/127.0.0.1/$port; } &>/dev/null; then
break
fi
done
# Listener. This will exit as soon as it receives a message.
run_podman run -d --pod $podname $IMAGE nc -l -p $port
cid1="$output"
# Talker: send the message via common port on localhost
message=$(random_string 15)
run_podman run --rm --pod $podname $IMAGE \
sh -c "echo $message | nc 127.0.0.1 $port"
# Back to the first (listener) container. Make sure message was received.
run_podman logs $cid1
is "$output" "$message" "message sent from one container to another"
# Clean up. First the nc -l container...
run_podman rm $cid1
# ...then, from pause container, find the image ID of the pause image...
# FIXME: if #6283 gets implemented, use 'inspect --format ...'
run_podman pod inspect $podname
pause_cid=$(jq -r '.Containers[0].Id' <<<"$output")
run_podman container inspect --format '{{.Image}}' $pause_cid
pause_iid="$output"
# ...then rm the pod, then rmi the pause image so we don't leave strays.
run_podman pod rm $podname
run_podman rmi $pause_iid
}
# Random byte
function octet() {
echo $(( $RANDOM & 255 ))
}
# random MAC address: convention seems to be that 2nd lsb=1, lsb=0
# (i.e. 0bxxxxxx10) in the first octet guarantees a private space.
# FIXME: I can't find a definitive reference for this though
# Generate the address IN CAPS (A-F), but we will test it in lowercase.
function random_mac() {
local mac=$(printf "%02X" $(( $(octet) & 242 | 2 )) )
for i in $(seq 2 6); do
mac+=$(printf ":%02X" $(octet))
done
echo $mac
}
# Random RFC1918 IP address
function random_ip() {
local ip="172.20"
for i in 1 2;do
ip+=$(printf ".%d" $(octet))
done
echo $ip
}
@test "podman pod create - hashtag AllTheOptions" {
mac=$(random_mac)
add_host_ip=$(random_ip)
add_host_n=$(random_string | tr A-Z a-z).$(random_string | tr A-Z a-z).xyz
dns_server=$(random_ip)
dns_opt="ndots:$(octet)"
dns_search=$(random_string 15 | tr A-Z a-z).abc
hostname=$(random_string | tr A-Z a-z).$(random_string | tr A-Z a-z).net
pod_id_file=${PODMAN_TMPDIR}/pod-id-file
# Create a pod with all the desired options
# FIXME: --ip=$ip fails:
# Error adding network: failed to allocate all requested IPs
run_podman pod create --name=mypod \
--pod-id-file=$pod_id_file \
--mac-address=$mac \
--hostname=$hostname \
--add-host "$add_host_n:$add_host_ip" \
--dns "$dns_server" \
--dns-search "$dns_search" \
--dns-opt "$dns_opt"
pod_id="$output"
# Check --pod-id-file
is "$(<$pod_id_file)" "$pod_id" "contents of pod-id-file"
# Check each of the options
if ! is_rootless; then
run_podman run --rm --pod mypod $IMAGE ip link show
# 'ip' outputs hex in lower-case, ${expr,,} converts UC to lc
is "$output" ".* link/ether ${mac,,} " "requested MAC address was set"
fi
run_podman run --rm --pod mypod $IMAGE hostname
is "$output" "$hostname" "--hostname set the hostname"
run_podman run --rm --pod $pod_id $IMAGE cat /etc/hosts
is "$output" ".*$add_host_ip $add_host_n" "--add-host was added"
is "$output" ".* $hostname" "--hostname is in /etc/hosts"
# ^^^^ this must be a tab, not a space
run_podman run --rm --pod mypod $IMAGE cat /etc/resolv.conf
is "$output" ".*nameserver $dns_server" "--dns [server] was added"
is "$output" ".*search $dns_search" "--dns-search was added"
is "$output" ".*options $dns_opt" "--dns-opt was added"
}
# vim: filetype=sh
|
