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97 lines
2.8 KiB
Bash
97 lines
2.8 KiB
Bash
#!/bin/bash
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# This script will create environment variables for all of the output IPs. An
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# anisble inventory file is created as well.
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#
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# Use eval $(./get-vm-ips.sh) to set env vars for ips.
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terraform refresh > /dev/null
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# The file to write the inventory to. This file will be completely overridden.
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INVENTORY_FILE="inventory"
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# Grab the the vm name prefix. We do this by greping all *.tfvars files making
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# sure to cat terraform.tfvars last. Then we just grab the last grep result,
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# this way we make sure any value in terraform.tfvars will take priority.
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VM_NAME_PREFIX_VAR="vm-name-prefix"
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VM_NAME_PREFIXES="$( \
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find . -name "*.tfvars" -exec grep "$VM_NAME_PREFIX_VAR" {} \; && \
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grep "$VM_NAME_PREFIX_VAR" terraform.tfvars)"
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VM_NAME_PREFIX="$(
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echo "$VM_NAME_PREFIXES" | \
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tail -n 1 | \
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sed 's/^.*=\s*"\(.*\)"/\1/g')"
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PUBLIC_IP_OUTPUT="groups_hostnames_ips"
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PRIVATE_IP_OUTPUT="groups_hostnames_private_ips"
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IP_TYPE="$PRIVATE_IP_OUTPUT"
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# This command stores the output data in the format below.
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# [
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# {
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# "group": "master",
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# "vms": [
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# {
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# "hostname": "ansible-test-master-0",
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# "ip": "52.14.114.48"
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# }
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# ]
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# },
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# {
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# "group": "worker",
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# "vms": [
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# {
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# "hostname": "ansible-test-worker-0",
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# "ip": "3.145.121.159"
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# },
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# {
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# "hostname": "ansible-test-worker-1",
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# "ip": "18.217.112.176"
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# }
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# ]
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# }
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# ]
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DATA="$(terraform show -json | \
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jq '.values.outputs.'"$IP_TYPE"'.value | to_entries |
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map({group: .key, vms:.value | to_entries |
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map({hostname:.key,ip:.value})})')"
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# Pull out the groups from $DATA. The format is a single string with the groups
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# separated by spaces, ie. "group1 group2 group3".
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ANS_GROUPS="$(
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echo $DATA | \
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jq '.[] | .group' | \
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sed 's/"//g' | \
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tr '\n' ' '
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)"
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# Clear the inventory file.
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cat /dev/null > $INVENTORY_FILE
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# For each group, write the VM info to $INVENTORY_FILE and also print a variable
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# expression to stdout.
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for GROUP in $ANS_GROUPS; do
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# Write the inventory file to $INVENTORY_FILE.
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echo "[$GROUP]" >> $INVENTORY_FILE
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echo $DATA | \
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jq '.[] | select(.group=="'"$GROUP"'") | .vms[] |
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"\(.hostname) ansible_host=\(.ip)"' | \
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sed 's/"//g' \
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>> $INVENTORY_FILE
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# For this group, collect expressions into VARS. The format is:
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# HOSTNAME1=0.0.0.0
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# HOSTNAME2=0.0.0.0
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VARS="$(
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echo $DATA | \
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jq '.[] | select(.group=="'"$GROUP"'") | .vms[] |
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"\(.hostname)=\(.ip)"' | \
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sed 's/"//g' | \
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sed "s/$VM_NAME_PREFIX-//g" | \
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sed 's/-/_/g'
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)"
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# Print the contents of $VARS converted to uppercase.
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echo "${VARS^^}"
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done
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