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@@ -16,7 +16,6 @@ services: | |
resources: | ||
limits: | ||
cpus: "3" | ||
memory: "" | ||
logging: | ||
driver: "json-file" | ||
options: | ||
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@@ -1,33 +1,34 @@ | ||
#!/bin/bash | ||
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# Define the percentage of host memory you want to allocate | ||
PERCENTAGE=70 | ||
PERCENTAGE=90 | ||
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# Get the total memory of the host system in kilobytes | ||
TOTAL_MEM_KB=$(grep MemTotal /proc/meminfo | awk '{print $2}') | ||
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# Check if TOTAL_MEM_KB was successfully retrieved | ||
if [ -z "$TOTAL_MEM_KB" ]; then | ||
echo "Failed to retrieve total memory." | ||
exit 1 | ||
fi | ||
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# Calculate the memory limit in kilobytes | ||
LIMIT_MEM_KB=$((TOTAL_MEM_KB * PERCENTAGE / 100)) | ||
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# Convert the limit to a format Docker understands (e.g., "m" for megabytes) | ||
LIMIT_MEM_MB=$((LIMIT_MEM_KB / 1024))m | ||
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# Define the Docker Compose file to modify | ||
DOCKER_COMPOSE_FILE="docker-compose.yml" | ||
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# Backup the original Docker Compose file | ||
cp $DOCKER_COMPOSE_FILE "${DOCKER_COMPOSE_FILE}.bak" | ||
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# Use awk to update the memory limits in the Docker Compose file, preserving indentation | ||
awk -v mem_limit="$LIMIT_MEM_MB" ' | ||
/services:/ { in_services=1 } | ||
in_services && /deploy:/ { in_deploy=1 } | ||
in_deploy && /resources:/ { in_resources=1 } | ||
in_resources && /limits:/ { in_limits=1 } | ||
in_limits && /memory:/ { | ||
$0 = gensub(/memory:.*/, "memory: " mem_limit, 1) | ||
} | ||
{ print } | ||
' "${DOCKER_COMPOSE_FILE}.bak" > "docker-compose.override.yml" | ||
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echo "Memory limits set to $LIMIT_MEM_MB in $DOCKER_COMPOSE_FILE" | ||
# Define the Docker Compose override file to create/update | ||
DOCKER_COMPOSE_OVERRIDE_FILE="docker-compose.override.yml" | ||
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# Create/update the docker-compose.override.yml with the memory limit | ||
cat <<EOF > "$DOCKER_COMPOSE_OVERRIDE_FILE" | ||
services: | ||
run: | ||
deploy: | ||
resources: | ||
limits: | ||
memory: $LIMIT_MEM_MB | ||
EOF | ||
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echo "Memory limits set to $LIMIT_MEM_MB in $DOCKER_COMPOSE_OVERRIDE_FILE" |