summaryrefslogtreecommitdiff
path: root/pkg/specgen/podspecgen.go
blob: 3c32ec365058005fa9845ce21facf6ff349ef2d7 (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
package specgen

import (
	"net"
)

// PodBasicConfig contains basic configuration options for pods.
type PodBasicConfig struct {
	// Name is the name of the pod.
	// If not provided, a name will be generated when the pod is created.
	// Optional.
	Name string `json:"name,omitempty"`
	// Hostname is the pod's hostname. If not set, the name of the pod will
	// be used (if a name was not provided here, the name auto-generated for
	// the pod will be used). This will be used by the infra container and
	// all containers in the pod as long as the UTS namespace is shared.
	// Optional.
	Hostname string `json:"hostname,omitempty"`
	// Labels are key-value pairs that are used to add metadata to pods.
	// Optional.
	Labels map[string]string `json:"labels,omitempty"`
	// NoInfra tells the pod not to create an infra container. If this is
	// done, many networking-related options will become unavailable.
	// Conflicts with setting any options in PodNetworkConfig, and the
	// InfraCommand and InfraImages in this struct.
	// Optional.
	NoInfra bool `json:"no_infra,omitempty"`
	// InfraConmonPidFile is a custom path to store the infra container's
	// conmon PID.
	InfraConmonPidFile string `json:"infra_conmon_pid_file,omitempty"`
	// InfraCommand sets the command that will be used to start the infra
	// container.
	// If not set, the default set in the Libpod configuration file will be
	// used.
	// Conflicts with NoInfra=true.
	// Optional.
	InfraCommand []string `json:"infra_command,omitempty"`
	// InfraImage is the image that will be used for the infra container.
	// If not set, the default set in the Libpod configuration file will be
	// used.
	// Conflicts with NoInfra=true.
	// Optional.
	InfraImage string `json:"infra_image,omitempty"`
	// SharedNamespaces instructs the pod to share a set of namespaces.
	// Shared namespaces will be joined (by default) by every container
	// which joins the pod.
	// If not set and NoInfra is false, the pod will set a default set of
	// namespaces to share.
	// Conflicts with NoInfra=true.
	// Optional.
	SharedNamespaces []string `json:"shared_namespaces,omitempty"`
	// PodCreateCommand is the command used to create this pod.
	// This will be shown in the output of Inspect() on the pod, and may
	// also be used by some tools that wish to recreate the pod
	// (e.g. `podman generate systemd --new`).
	// Optional.
	PodCreateCommand []string `json:"pod_create_command,omitempty"`
}

// PodNetworkConfig contains networking configuration for a pod.
type PodNetworkConfig struct {
	// NetNS is the configuration to use for the infra container's network
	// namespace. This network will, by default, be shared with all
	// containers in the pod.
	// Cannot be set to FromContainer and FromPod.
	// Setting this to anything except default conflicts with NoInfra=true.
	// Defaults to Bridge as root and Slirp as rootless.
	// Mandatory.
	NetNS Namespace `json:"netns,omitempty"`
	// StaticIP sets a static IP for the infra container. As the infra
	// container's network is used for the entire pod by default, this will
	// thus be a static IP for the whole pod.
	// Only available if NetNS is set to Bridge (the default for root).
	// As such, conflicts with NoInfra=true by proxy.
	// Optional.
	StaticIP *net.IP `json:"static_ip,omitempty"`
	// StaticMAC sets a static MAC for the infra container. As the infra
	// container's network is used for the entire pod by default, this will
	// thus be a static MAC for the entire pod.
	// Only available if NetNS is set to Bridge (the default for root).
	// As such, conflicts with NoInfra=true by proxy.
	// Optional.
	StaticMAC *net.HardwareAddr `json:"static_mac,omitempty"`
	// PortMappings is a set of ports to map into the infra container.
	// As, by default, containers share their network with the infra
	// container, this will forward the ports to the entire pod.
	// Only available if NetNS is set to Bridge or Slirp.
	// Optional.
	PortMappings []PortMapping `json:"portmappings,omitempty"`
	// CNINetworks is a list of CNI networks that the infra container will
	// join. As, by default, containers share their network with the infra
	// container, these networks will effectively be joined by the
	// entire pod.
	// Only available when NetNS is set to Bridge, the default for root.
	// Optional.
	CNINetworks []string `json:"cni_networks,omitempty"`
	// NoManageResolvConf indicates that /etc/resolv.conf should not be
	// managed by the pod. Instead, each container will create and manage a
	// separate resolv.conf as if they had not joined a pod.
	// Conflicts with NoInfra=true and DNSServer, DNSSearch, DNSOption.
	// Optional.
	NoManageResolvConf bool `json:"no_manage_resolv_conf,omitempty"`
	// DNSServer is a set of DNS servers that will be used in the infra
	// container's resolv.conf, which will, by default, be shared with all
	// containers in the pod.
	// If not provided, the host's DNS servers will be used, unless the only
	// server set is a localhost address. As the container cannot connect to
	// the host's localhost, a default server will instead be set.
	// Conflicts with NoInfra=true.
	// Optional.
	DNSServer []net.IP `json:"dns_server,omitempty"`
	// DNSSearch is a set of DNS search domains that will be used in the
	// infra container's resolv.conf, which will, by default, be shared with
	// all containers in the pod.
	// If not provided, DNS search domains from the host's resolv.conf will
	// be used.
	// Conflicts with NoInfra=true.
	// Optional.
	DNSSearch []string `json:"dns_search,omitempty"`
	// DNSOption is a set of DNS options that will be used in the infra
	// container's resolv.conf, which will, by default, be shared with all
	// containers in the pod.
	// Conflicts with NoInfra=true.
	// Optional.
	DNSOption []string `json:"dns_option,omitempty"`
	// NoManageHosts indicates that /etc/hosts should not be managed by the
	// pod. Instead, each container will create a separate /etc/hosts as
	// they would if not in a pod.
	// Conflicts with HostAdd.
	NoManageHosts bool `json:"no_manage_hosts,omitempty"`
	// HostAdd is a set of hosts that will be added to the infra container's
	// /etc/hosts that will, by default, be shared with all containers in
	// the pod.
	// Conflicts with NoInfra=true and NoManageHosts.
	// Optional.
	HostAdd []string `json:"hostadd,omitempty"`
}

// PodCgroupConfig contains configuration options about a pod's cgroups.
// This will be expanded in future updates to pods.
type PodCgroupConfig struct {
	// CgroupParent is the parent for the CGroup that the pod will create.
	// This pod cgroup will, in turn, be the default cgroup parent for all
	// containers in the pod.
	// Optional.
	CgroupParent string `json:"cgroup_parent,omitempty"`
}

// PodSpecGenerator describes options to create a pod
// swagger:model PodSpecGenerator
type PodSpecGenerator struct {
	PodBasicConfig
	PodNetworkConfig
	PodCgroupConfig
}

// NewPodSpecGenerator creates a new pod spec
func NewPodSpecGenerator() *PodSpecGenerator {
	return &PodSpecGenerator{}
}