#!/bin/bash

# Copyright Istio Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#    http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,

CRDs in place and not have Istio modify them. In this case, it is necessary to apply CRD files individually.

```bash
kubectl apply -k github.com/istio/installer/base
```

or

```bash
kubectl apply -f base/files
```

### Install Istio-CNI

This is an optional step - CNI must run in a dedicated namespace, it is a 'singleton' and extremely

func (m *realDeps) ipsetIPHashCreate(name string, v6 bool) error {
	var family uint8

	if v6 {
		family = unix.AF_INET6
	} else {
		family = unix.AF_INET
	}
	err := netlink.IpsetCreate(name, "hash:ip", netlink.IpsetCreateOptions{Comments: true, Replace: true, Family: family})
	if ipsetErr, ok := err.(nl.IPSetError); ok && ipsetErr == nl.IPSET_ERR_EXIST {
		return nil
	}

	return err
}

#!/usr/bin/env bash

# Copyright Istio Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#    http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,

#!/bin/bash

# Copyright 2018 Istio Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#    http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,

#!/bin/bash

# Copyright 2019 Istio Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#    http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,

	clearEntriesWithIP(name string, ip netip.Addr) error
	listEntriesByIP(name string) ([]netip.Addr, error)
}

// TODO this should actually create v6 and v6 subsets of type `hash:ip`, add them both to a
// superset of type `list:set` - we can then query the superset directly in iptables (with the same rule),
// and iptables will be smart enough to pick the correct underlying set (v4 or v6, based on context),

# limitations under the License.

set -e

# https://stackoverflow.com/questions/59895/how-can-i-get-the-source-directory-of-a-bash-script-from-within-the-script-itsel
# Note: the normal way we use in other scripts in Istio do not work when `source`d, which is why we use this approach
SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
REPO_ROOT="$(dirname "$(dirname "${SCRIPT_DIR}")")"

LOCAL_ARCH=$(uname -m)