summaryrefslogtreecommitdiff
path: root/test/system/200-pod.bats
blob: e3643a3bd9e3a6d1429c77459c5f3eb790811b09 (plain)
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