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| 1 | +# Access policies |
| 2 | + |
| 3 | +This guide will show you how to define [access policies](../explanation/zero-trust.md) for your [workload](../explanation/workloads/README.md). |
| 4 | + |
| 5 | +## Receive requests from workloads in the same namespace |
| 6 | + |
| 7 | +For app `<MY-APP>` to be able to receive incoming requests from `<MY-OTHER-APP>` in the same namespace, this specification is needed for `<MY-APP>`: |
| 8 | + |
| 9 | +=== "app.yaml" |
| 10 | + |
| 11 | + ```yaml |
| 12 | + apiVersion: "nais.io/v1alpha1" |
| 13 | + kind: "Application" |
| 14 | + metadata: |
| 15 | + name: <MY-APP> |
| 16 | + ... |
| 17 | + spec: |
| 18 | + ... |
| 19 | + accessPolicy: |
| 20 | + inbound: |
| 21 | + rules: |
| 22 | + - application: <MY-OTHER-APP> |
| 23 | + ``` |
| 24 | + |
| 25 | +=== "visualization" |
| 26 | + |
| 27 | + ```mermaid |
| 28 | + graph LR |
| 29 | + accTitle: Receive requests from other workload in the same namespace |
| 30 | + accDescr: The diagram shows two applications in the same namespace, MY-APP and MY-OTHER-APP. Application MY-APP is allowed to receive requests from MY-OTHER-APP. |
| 31 | + |
| 32 | + MY-OTHER-APP--"✅"-->MY-APP |
| 33 | + |
| 34 | + subgraph namespace |
| 35 | + MY-OTHER-APP |
| 36 | + MY-APP |
| 37 | + end |
| 38 | + ``` |
| 39 | + |
| 40 | +## Receive requests from workloads in other namespaces |
| 41 | + |
| 42 | +For app `<MY-APP>` to be able to receive incoming requests from `<ANOTHER-APP>` in `<ANOTHER-NAMESPACE>`, this specification is needed for `<MY-APP>`: |
| 43 | + |
| 44 | +=== "app.yaml" |
| 45 | + |
| 46 | + ```yaml |
| 47 | + apiVersion: "nais.io/v1alpha1" |
| 48 | + kind: "Application" |
| 49 | + metadata: |
| 50 | + name: <MY-APP> |
| 51 | + ... |
| 52 | + spec: |
| 53 | + ... |
| 54 | + accessPolicy: |
| 55 | + inbound: |
| 56 | + rules: |
| 57 | + - application: <ANOTHER-APP> |
| 58 | + namespace: <ANOTHER-NAMESPACE> |
| 59 | + ``` |
| 60 | + |
| 61 | +=== "visualization" |
| 62 | + |
| 63 | + ```mermaid |
| 64 | + graph LR |
| 65 | + accTitle: Receive requests from other app in the another namespace |
| 66 | + accDescr: The diagram shows two applications in different namespaces, <MY-APP and ANOTHER-APP. Application MY-APP is allowing requests from ANOTHER-APP. |
| 67 | + |
| 68 | + ANOTHER-APP--"✅"-->MY-APP |
| 69 | + |
| 70 | + subgraph namespace |
| 71 | + MY-APP |
| 72 | + end |
| 73 | + |
| 74 | + subgraph another-namespace |
| 75 | + ANOTHER-APP |
| 76 | + end |
| 77 | + ``` |
| 78 | + |
| 79 | +## Send requests to another app in the same namespace |
| 80 | + |
| 81 | +For app `MY-APP` to be able to send requests to `<MY-OTHER-APP>` in the same namespace, this specification is needed for `<MY-APP`: |
| 82 | + |
| 83 | +=== "nais.yaml" |
| 84 | + |
| 85 | + ```yaml |
| 86 | + apiVersion: "nais.io/v1alpha1" |
| 87 | + kind: "Application" |
| 88 | + metadata: |
| 89 | + name: <MY-APP> |
| 90 | + ... |
| 91 | + spec: |
| 92 | + ... |
| 93 | + accessPolicy: |
| 94 | + outbound: |
| 95 | + rules: |
| 96 | + - application: <MY-OTHER-APP> |
| 97 | + ``` |
| 98 | + |
| 99 | +=== "visualization" |
| 100 | + |
| 101 | + ```mermaid |
| 102 | + graph LR |
| 103 | + accTitle: Send requests to other app in the same namespace |
| 104 | + accDescr: The diagram shows two applications in the same namespace, MY-APP and MY-OTHER-APP. Application MY-APP is allowed to send requests to MY-OTHER-APP. |
| 105 | + |
| 106 | + MY-APP--"✅"-->MY-OTHER-APP |
| 107 | + |
| 108 | + subgraph mynamespace |
| 109 | + MY-APP |
| 110 | + MY-OTHER-APP |
| 111 | + end |
| 112 | + ``` |
| 113 | + |
| 114 | +## Send requests to other app in the another namespace |
| 115 | + |
| 116 | +For app `<MY-APP>` to be able to send requests to `<ANOTHER-APP>` in `<ANOTHER-NAMESPACE>`, this specification is needed for `<MY-APP>`: |
| 117 | + |
| 118 | +=== "nais.yaml" |
| 119 | + |
| 120 | + ```yaml |
| 121 | + apiVersion: "nais.io/v1alpha1" |
| 122 | + kind: "Application" |
| 123 | + metadata: |
| 124 | + name: <MY-APP> |
| 125 | + ... |
| 126 | + spec: |
| 127 | + ... |
| 128 | + accessPolicy: |
| 129 | + outbound: |
| 130 | + rules: |
| 131 | + - application: <ANOTHER-APP> |
| 132 | + namespace: <ANOTHER-NAMESPACE> |
| 133 | + ``` |
| 134 | + |
| 135 | +=== "visualization" |
| 136 | + |
| 137 | + ```mermaid |
| 138 | + graph LR |
| 139 | + accTitle: Send requests to other app in another-namespace |
| 140 | + accDescr: The diagram shows two applications in different namespaces, MY-APP and ANOTHER. Application MY-APP is allowed to send requests to ANOTHER-APP. |
| 141 | + |
| 142 | + MY-APP--"✅"-->ANOTHER-APP |
| 143 | + |
| 144 | + subgraph mynamespace |
| 145 | + MY-APP |
| 146 | + end |
| 147 | + |
| 148 | + subgraph another-namespace |
| 149 | + ANOTHER-APP |
| 150 | + end |
| 151 | + ``` |
| 152 | + |
| 153 | +## Send requests to external endpoints |
| 154 | + |
| 155 | +For app `<MY-APP>` to be able to send requests outside of the environment, this specification is needed for `<MY-APP>`: |
| 156 | + |
| 157 | +=== "app.yaml" |
| 158 | + |
| 159 | + ```yaml |
| 160 | + apiVersion: "nais.io/v1alpha1" |
| 161 | + kind: "Application" |
| 162 | + metadata: |
| 163 | + name: <MY-APP> |
| 164 | + ... |
| 165 | + spec: |
| 166 | + ... |
| 167 | + accessPolicy: |
| 168 | + outbound: |
| 169 | + external: |
| 170 | + - host: external-application.com |
| 171 | + ``` |
| 172 | + |
| 173 | +=== "visualization" |
| 174 | + |
| 175 | + ```mermaid |
| 176 | + graph LR |
| 177 | + accTitle: External services |
| 178 | + accDescr: The diagram shows an application, <MY-APP>, that is allowed to send requests to an external service. |
| 179 | + |
| 180 | + MY-APP--"✅"-->external-application.com |
| 181 | + |
| 182 | + subgraph environment |
| 183 | + subgraph mynamespace |
| 184 | + MY-APP |
| 185 | + end |
| 186 | + end |
| 187 | + ``` |
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