Terraform

When is an anycast ip an anycast ip ?

that’s a question i was asked recently. As LTNN (Long Term Networking Nerd), i’m aware of Unicast, Multicast, Broadcast and also Anycast. so, let’s have a look into this.

hint: this article is not about how to setup your own anycast network. this may follow soon ?!?

Terminologie

Unicast 1:1

Sending a message from one sender to one recipient

Multicast 1:many

Sending a message from one sender to multiple recipients

Terraform OpenBSD & Vultr

doas pkg_add git gmake go terraform

cat << EOF

# Go, $(date)
export PATH=$PATH:$(go env GOPATH)/bin
export GOPATH=$(go env GOPATH)
EOF

mkdir -p $GOPATH/src/github.com/vultr; cd $GOPATH/src/github.com/vultr
git clone [email protected]:vultr/terraform-provider-vultr.git

cd $GOPATH/src/github.com/vultr/terraform-provider-vultr
gmake build

main.tf

cat << 'EOF' > main.tf
terraform {
  required_providers {
    vultr = {
      source = "vultr/vultr"
      version = "2.12.1"
    }
  }
}

resource "vultr_instance" "web" {
  count = 2
  plan  = "vc2-1c-1gb"
  region = "fra"
  hostname = "web-${count.index+1}"
  label = "web-${count.index+1}"
}
EOF

Init, Plan, Apply

export TF_VULTR_API_KEY=xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

terraform init
terraform plan
terraform apply

main.tf

5 Servers in 5 Regions, each of them has got a uniqe name and the authorized_key file adjusted …

Managing VM’s on Hetzner Cloud with Terraform

you may want to manage some vm in the cloud. webgui is nice, but a real nerd needs cli ;)

some notes how to get terraform running with OpenBSD.

add Packages (3min)

$ time doas pkg_add git gmake go terraform

3m18.62s real     0m19.53s user     0m07.73s system

set GO PATH

echo "GOPATH=$HOME/go" >> ~/.profile
echo "export GOPATH" >> ~/.profile
. ./.profile
echo $GOPATH

build terraform provider for hcloud (2min)

As the hcloud is not available for OpenBSD, we have to build it on our own.